Reviews and Information for Magnesium Citrate
Magnesium Supplements
Trying to find the best magnesium supplement? ConsumerLab tested popular forms and brands. Find out which ones passed our review and tests, which failed, and which we selected as our Top Picks. Learn which forms of magnesium are best absorbed, correct dosage, side effects, and who is most likely to need magnesium.
Magnesium Supplements Review
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CL Answer
Is magnesium citrate safe? I heard that it might cause damage to the esophagus.
Find out if magnesium citrate is safe to use or if it causes damage to the esophagus.
CL Answer
Help! How do I know how much magnesium I am actually getting from my supplement? The label says it contains 500 mg of magnesium "as magnesium citrate" -- but how much of that is magnesium and how much is citrate?
Understand the actual amount of magnesium dosage (or "elemental magnesium") you are getting from your supplement. ConsumerLab.com explains.
CL Answer
Which is the best form of magnesium to take - one that contains the most magnesium and is best absorbed?
Info on which is the best form of magnesium supplements to take and what to look for when choosing the best magnesium supplement. ConsumerLab.com explains.
Product Review
Multivitamin and Multimineral Supplements Review
Best Multivitamins In 2023 -- Caution with Gummies
Product Review
Electrolytes & Sports Drinks Review
See Which Sports Drinks, Powders, and Pills Deliver the Right Electrolytes
CL Answer
How can I easily compare the ingredients in supplements?
Find out how to easily compare the ingredients in different supplements, find the full list of ingredients for products and a database of dietary supplement labels. ConsumerLab.com's answer explains.
Product Review
Potassium Supplements Review
Be Careful with Potassium Supplements! Problems Found. Tests and Reviews of Potassium Supplements & CL's Top Picks.
CL Answer
7 Red Flags to Watch Out For When Buying Vitamins & Supplements
When it comes to buying vitamins and supplements, it's buyer beware. ConsumerLab explains seven red flags to look out for on labels when choosing and buying vitamins or supplements, including claims of "FDA Approved" laboratories, what to look for in the ingredient list, and more.
Product Review
Glutathione Supplements Review
Learn How Glutathione Products Differ, Which Failed, and Our Top Picks
CL Answer
Is there an accurate test for magnesium deficiency?
Is there an accurate test for magnesium deficiency? Testing for serum magnesium concentration (SMC), the red blood cell (RBC) test, the magnesium loading test and the 24-hour excretion test.
Product Review
Digestive Enzyme Supplements Review
Big Differences in Strength Found Among Digestive Enzyme Supplements. CL Tests Reveal Which Are Best.
CL Answer
Does magnesium cause diarrhea? Are some forms less likely to cause loose stools than others?
Could your magnesium supplement be causing diarrhea? Find out why the dose of magnesium in your supplement matters, and which forms of magnesium are less likely to cause diarrhea ConsumerLab.com's answer explains.
CL Answer
Does magnesium help with depression?
Find out if having low magnesium levels increases the risk of depression and if supplements such as magnesium citrate, magnesium chloride, can help for depression. Also, find out how to make sure you are getting adequate magnesium. ConsumerLab.com's answer explains.
Product Review
Calcium and Bone Health Supplements Review (Including Vitamins D & K, Magnesium and Boron)
See Which Bone Health Supplements Are Top Picks and Which Fail
CL Answer
What are the side effects of magnesium supplements?
Info on magnesium supplement side effects, such as stomach upset, nausea and diarrhea. Learn about magnesium dosage, safety and drug interactions. ConsumerLab.com answer explains.
CL Answer
How do I choose the best magnesium supplement?
Choosing the best form of magnesium supplements can be tricky due to the many different types (magnesium aspartate, bicarbonate, carbonate, chloride, citrate and others).
Product Review
D-Mannose Supplements
Find out if D-mannose helps prevent urinary tract infections and how products compare.
Recalls & Warnings
July 18, 2022
CVS, Target, Walgreens, and Other Oral Magnesium Citrate Laxatives Recalled Due to Bacterial Contamination
On July 14, 2022, Magnesium Citrate Laxative Oral Solution Lemon Flavor products manufactured by Vi-Jon, LLC and sold under various store brand names were recalled after testing identified the presence of the bacteria Gluconacetobacter liquefaciens.
Product Review
GABA Supplements Review
Does GABA Work As a Supplement?
CL Answer
What are "broad-spectrum micronutrient" supplements, and do they have greater health benefits than multivitamin/multimineral supplements?
Learn about "broad-spectrum micronutrients" and how they compare to multivitamin/multimineral supplements.
Product Review
Nutrition Bars & Cookies Review (For Energy, Fiber, Protein, Meal Replacement, and Whole Foods)
Find the Best Nutrition Bar or Cookie. ConsumerLab Tests Reveals Not All Nutrition Bars and Cookies Contain What They Claim.
Product Review
Boron Supplements Review (Including Calcium, Magnesium, and Vitamins D & K)
Is Boron Needed for Bone Health? Find Out and See Our Top Pick Among Supplements
News Release
July 31, 2024
Best Calcium & Bone Health Supplements According to ConsumerLab Tests
White Plains, NY, July 31, 2024 — Calcium is essential to maintaining bone health and plays critical roles in nerve transmission, muscle contraction, and the cardiovascular system.
News Release
May 07, 2024
ConsumerLab Tests Magnesium Supplements, Spots Problems and Selects a Top Pick
White Plains, NY, May 7, 2024 — Nearly half the U.S. population does not get adequate amounts of magnesium and may benefit from increasing magnesium intake from foods or supplementation.
News Release
February 26, 2024
Latest ConsumerLab Survey Shows Growth in Popularity of Magnesium and Several Smaller Supplements
White Plains, New York, February 26, 2024 — A recent survey of more than 10,000 people who regularly use dietary supplements shows that supplements that experienced the greatest absolute growth in popularity during 2023 were pregnenolone (+7.5 percentage points), magnesium (+4.8 pts), berberine (+4.
CL Answer
Can lemon juice, lemonade, or other juices reduce my chances of getting kidney stones?
Information about lemon juice, lemonade, orange juice, cranberry juice and other juices for increasing urinary citrate and reducing the risk of kidney stones.
Product Review
Coconut Waters Review
Best Coconut Water? See Our Tests and Comparisons of Popular Brands Looking at Sugar, Electrolytes, Taste and Price.
News Release
May 16, 2022
Best Calcium and Bone Health Supplements Revealed by ConsumerLab Tests
White Plains, New York, May 16, 2022 — Calcium is essential for maintaining bones and plays critical roles in nerve transmission, muscle contraction, and the cardiovascular system.
CL Answer
Do magnesium supplements, like Magtein, help memory or protect against Alzheimer's disease?
Magtein, and other magnesium supplements, may help memory and protect against Alzheimer's disease.
Product Review
Choline and Lecithin Supplements Review (Including Phosphatidylcholine, CDP-Choline, and Alpha-GPC)
Choose the Best Choline Supplement. Find Out How Much Choline Popular Supplements Really Provide.
CL Answer
Which supplements reduce hearing loss?
Can supplements such as alpha-lipoic acid, magnesium, N-acetyl-cysteine, folate or vitamins B-12, C and/or E help prevent or improve symptoms among people with hearing loss due to excessive noise or aging? Find out what the clinical evidence shows, and learn whether Advanced Hearing Formula, a supplement marketed for ear health, is likely to help.
CL Answer
If I buy NAC as a loose powder in a large bag, as opposed to in tablet or capsule form, will it spoil? I've heard it can spoil or degrade into a harmful by-product.
Learn more about the different forms of N-Acetyl-Cysteine (NAC), including whether or not powder will spoil faster than tablets.
Product Review
Zinc Supplements and Lozenges Review
Find the Best Zinc Supplements and Lozenges. Have a Cold? See CL's Top Picks Among Zinc Supplements and Lozenges.
News Release
April 13, 2022
ConsumerLab Tests Vitamin D Supplements and Cautions About Dose
White Plains, New York, May 12, 2022 — Getting sufficient vitamin D is essential for healthy bones and has a wide range of other health benefits. It's no wonder that it has been the #1 supplement in popularity year-after-year in ConsumerLab's survey of supplement users.
CL Answer
I am 70 a year male in relatively good health. I plan on walking the Camino in France (500 miles). I am looking for a multivitamin that would best supply me with my needs during this walk/hike. What would be the best product or combination of products to use?
Find out if older adults who walk or hike should take a multivitamin, vitamin C, vitamin D, or other supplements, like electrolytes, when hiking. Plus, see our advice for choosing a good sunscreen.
CL Answer
Which supplements and foods reduce or increase the risk of kidney stones?
Find out which supplements, foods and beverages may increase or decrease the risk of kidney stones, including information about potassium, calcium, choline, turmeric and curcumin, vitamin C, as well as foods and beverages such as green tea, lemon juice, orange juice, cranberry juice, chocolate and almonds.
CL Answer
What is Perque Bone Guard Forté? It is safe and effective for bone health?
Find out about the ingredients in Perque Bone Guard Forté, including which ingredients may be beneficial for osteoporosis and bone health and which may be a safety concern.
Product Review
Nattokinase Supplements Review
Choose the Best Nattokinase Supplement. CL Tests Reveal Which Nattokinase Suppplements Provide the Best Quality & Value.
Product Review
Taurine Supplements Review for People, Dogs, and Cats
Find the Best Taurine Supplements. Learn When to Use Taurine and Which Supplement is Best.
CL Answer
Are supplements with amino acid chelated minerals better than those with other forms of minerals?
Learn more about chelates, including evidence from clinical studies on selenium, iron, and magnesium.
News Release
April 02, 2022
ConsumerLab Discovers Less Vitamin K Than Listed in Some Supplements
White Plains, New York, May 16, 2022 — Vitamin K plays an important role in proper blood clotting and calcium utilization in bones and is a common ingredient in bone health supplements.
Product Review
SAMe (S-adenosyl-methionine) Supplements Review
Choose the Best SAMe Supplement. CL Tests Reveal Big Differences in Quality and Cost.
Product Review
PQQ (Pyrroloquinoline Quinone) Supplements Review
Learn What PQQ Does and Which PQQ Supplements are Best
News Release
March 11, 2022
Best Magnesium Supplements Identified by ConsumerLab
White Plains, New York, May 12, 2022 — Nearly half the U.S. population does not get adequate amounts of magnesium and can benefit from increasing magnesium intake from foods or supplementation.
News Release
May 18, 2021
Caution With Potassium Supplements: You Could Get More Than Expected
White Plains, New York, May 18, 2021 — Recent tests by ConsumerLab.com of popular potassium supplements on the market revealed that consumers to get much more or much less potassium than expected from certain products.
News Release
February 29, 2020
Collagen and Magnesium Rise in Popularity, as Fish Oil and Curcumin Dip in Latest ConsumerLab Survey of Supplement Users
White Plains, New York, February 29, 2020 — A recent survey of 9,782 people who use dietary supplements shows that collagen (+ 4.1 percentage points), magnesium (+ 2.3 pts) and CBD (+ 2.
Product Review
Low-Dose Lithium Supplements Review
Choose the Best Low-Dose Lithium Supplement. CL Tests Reveal Which Low-Dose Lithium Supplements Offer the Best Quality and Value.
CL Answer
Is it safer to get calcium from foods than from supplements? How about from calcium-fortified orange juice and non-dairy milks?
Information on getting calcium naturally through food like calcium-fortified orange juice or through calcium supplements.
CL Answer
Do any supplements, foods, or oils help reduce muscle pain, muscle cramps, or nighttime leg cramps?
Find out which supplements, and topical products such as magnesium creams, can help reduce muscle pain, leg cramps, and nighttime leg cramps, and which may worsen muscle cramps. Also, learn about vitamin and mineral deficiencies and common medications that can cause muscle cramps and nocturnal leg cramps.
CL Answer
Where to Safely Buy Real Vitamins and Supplements Online, Not Fakes or Counterfeits
ConsumerLab explains how to avoid counterfeit vitamins and supplements when shopping online on Amazon, Walmart.com, and other sites. Learn to identify authorized sites and sellers and avoid fake supplements. Use the brand-by-brand guide to protect yourself from risk.
CL Answer
Are there any supplements I should avoid when taking an antibiotic? Are there any that may be helpful?
Find out which supplements can negatively interact with antibiotics, including vitamin K, magnesium, and calcium, and which may be helpful when taking antibiotics.
News Release
November 12, 2019
Best Magnesium Supplements Revealed by ConsumerLab
White Plains, New York, November 12, 2019 — Many people do not get adequate amounts of magnesium from their diets, or may have lower levels of this essential mineral due to certain medical conditions or the use of common medications such as Nexium and Prilosec.
CL Answer
Is it true that I should not keep magnesium supplements in a daily pill pack mixed with other supplements and medicines?
Find out if magnesium should be stored separately from other types of supplements.
Product Review
Vitamin K Supplements Review (Including Calcium, Vitamin D, Magnesium & Boron)
Find Out If It's Worth Taking Vitamin K and Which Products Are Best
Product Review
Ashwagandha Supplements Review
Find the Best Ashwagandha Supplement. Only 38% of Ashwagandha Products Pass Tests.
Product Review
Psyllium Fiber Supplements Review
Find the Best Psyllium Fiber Supplement and Avoid Lead.
Product Review
Vitamin D Supplements Review (Including Calcium, Magnesium, Vitamin K, and Boron)
Find the Best Vitamin D Supplement and Avoid Problems
CL Answer
Which supplements are important after bariatric surgery (i.e., weight loss or stomach-reducing surgery)? Are there any I should avoid?
Find out which supplements may help after weight loss or stomach reducing surgery, including iron and calcium, and which should be avoided.
CL Answer
Which supplements and foods help with gout and which may worsen it?
Find out about the effects on uric acid levels and gout of fish and fish oil, coffee, beer, animal meat, milk proteins, vegetable proteins, fructose, lemon juice, tart cherry juice, vitamin A, vitamin C, and niacin
Product Review
Joint Health Supplements Review (Glucosamine, Chondroitin, MSM, Boswellia, Collagen and Turmeric)
One-Third of Joint Health Supplements Failed to Pass Our Tests. See Which Passed or Failed, and our Top Picks.
Product Review
Apple Cider Vinegar Review — Bottled Liquids and Supplements
Find the Best Apple Cider Vinegar. See Which Apple Cider Vinegar Liquids and Supplements Passed Our Tests of Quality.
CL Answer
Do any supplements or foods help with migraine? Do any trigger migraine?
Find out if supplements such as magnesium, CoQ10, riboflavin, butterbur, feverfew and others help with migraine. Also learn about foods that may trigger migraine, including chocolate and watermelon.
Product Review
Iron Supplements Review (Iron Pills, Liquids and Chews)
See Which Iron Supplements Are CL's Top Picks for Different Needs
CL Answer
Is it true that calcium citrate increases the absorption of aluminum?
Find out how calcium citrate can impact the absorption of aluminum in your body and if this is a problem for your health.
Product Review
Elderberry Supplements Review
Find the Best Elderberry Supplement. Tests and Reviews of Popular Elderberry Supplements & CL's Top Picks.
CL Answer
Can taking certain forms of potassium, such as potassium citrate, reduce my chances of getting kidney stones? I've read a study that says it can, but it's unclear how much I should take.
Potassium citrate for kidney stones - can it help? Find out if you can reduce the risk of kidney stones with Potassium citrate.
Product Review
Alginate Supplements Review (For Reflux)
See Our Top Pick Alginate Supplements For Reducing Symptoms of Gastroesophageal Reflux (GERD)
CL Answer
Do any supplements or diets help prevent or treat osteoporosis?
If you have osteoporosis, you may be interested in supplements or diets for bone health. Find out which can increase bone strength and density.
CL Answer
How much calcium do you need each day, what forms are best, and how much is too much?
Learn about the recommended daily intake of calcium from food & supplements and why taking too much can be harmful. Also, learn about the forms of calcium that are available and which are best.
Product Review
Olive Leaf Extract Supplements Review
Learn What Olive Leaf Does and the Best Brands
Product Review
L-Lysine Supplements Review
Read L-Lysine Labels Carefully. Some Can Fool You.
CL Answer
Can coconut water prevent or dissolve kidney stones?
Find out if coconut water can help prevent kidney stones, or dissolve them, by increasing urinary citrate, or if there are better ways. ConsumerLab.com's answer explains.
Product Review
L-Theanine Supplements Review
Touted for Stress Relief, Do L-Theanine Supplements Work?
Product Review
Garlic Supplements Review
Find the Best Garlic Supplements. CL Tests Reveal Big Differences in Garlic Strength -- Some Have Little to No Garlic!.
Product Review
NAD Booster Supplements Review (NAD+/NADH, Nicotinamide Riboside, and NMN)
How Important Is Boosting NAD+ Levels? Find Out and Learn How Booster Supplements Compare.
CL Answer
How much calcium from supplements is too much?
Too much calcium per day - how much is too much? Learn about the recommended daily intake from food & supplements and why taking too much calcium can be harmful.
CL Answer
Can D-mannose help prevent urinary tract infections?
Learn more about D-mannose and its impact on urinary tract infections (UTIs), including evidence from clinical studies.
News Release
April 25, 2019
Best Coconut Water? ConsumerLab Tests Popular Products, Reveals Top Pick
White Plains, New York, April 25, 2019 — Coconut water is often promoted as a healthy way to stay hydrated and a natural alternative to sports drinks.
News Release
February 24, 2019
CBD and Collagen Rise in Popularity, as Probiotics and Coconut Oil Dip in Latest ConsumerLab Survey of Supplement Users
White Plains, New York, February 24, 2019 — A recent survey of 10,931 people who use dietary supplements shows that CBD oil (+6.3 percentage points), collagen (+3.6 pts), and bone broth (+2.
CL Answer
Is it possible to take too much vitamin C?
Find out the daily value of vitamin C, along with possible side effects of excessive vitamin C intake. ConsumerLab explores the topic of proper vitamin C supplement usage, and why taking too much can be harmful.
CL Answer
Are plant-based calcium supplements, like AlgaeCal, better than regular calcium supplements?
Info about AlgaeCal, a plant-based calcium supplement. See the clinical evidence and safety information, including possible presence of excessive lead.
CL Answer
Are lithium orotate supplements as effective and safe as prescription lithium for bipolar disease and depression?
Lithium orotate supplement info, including proper dosage, safety, and how lithium orotate supplements compare to prescription lithium for bipolar disease and depression.
CL Answer
What is the benefit of magnesium orotate compared to other forms of magnesium?
Find out if magnesium orotate is the best form of magnesium for supplements, including safety concerns.
CL Answer
How much magnesium do I need and how much magnesium from supplements is too much?
Find out how much magnesium you should be getting on a daily basis, signs of magnesium deficiency, and how much magnesium is too much, particularly from magnesium supplements and laxatives containing magnesium. Find out the side effects and potential adverse effects of too much magnesium.
CL Answer
Is it true that magnesium bisglycinate from BioSchwartz is less likely to cause a laxative effect than other forms of magnesium?
Find out if the Magnesium Bisglycinate from BioSchwartz is better than other forms of magnesium and how much magnesium this product contains. ConsumerLab.com's answer explains.
Recalls & Warnings
August 08, 2022
Recall of Oral Magnesium Laxatives Expanded
On August 3, 2022, Plastikon Healthcare, LLC issued a recall of multiple oral suspension products due to microbial contamination.
CL Answer
Will an Epsom salt bath increase magnesium levels in my body like a supplement?
Find out if Epsom salt baths can increase magnesium levels in the body like a supplement. Plus, see evidence for other methods other transdermal methods of obtaining magnesium, such as magnesium creams, oils and sprays. ConsumerLab.com's answer explains.
CL Answer
Can magnesium supplements reduce heart palpitations or PVCs?
Having low blood levels of magnesium has been associated with abnormal heart rhythms known as PVCs (premature ventricular complexes). Find out if taking magnesium supplements can help.
CL Answer
I've read that magnesium deficiency is rare but also that most people don't get enough magnesium. How can these both be true?
Learn how common magnesium deficiency is, and why, even if you are not deficient, you may still benefit from getting more magnesium. ConsumerLab.com's answer explains.
CL Answer
Are there drug interactions with magnesium supplements?
Find out about interactions between magnesium supplements and over-the-counter antacids and laxatives such as Maalox, antibiotics, and statins and diabetes medications. ConsumerLab’s answer explains.
CL Answer
How can the Recommended Daily Allowance (RDA) for magnesium be higher than the Tolerable Upper Intake Level (UL)? That is, how can an amount which is healthful also put you at risk for harm?
Find out why RDAs and ULs may seem to contradict each other and how to ensure safe supplement dosages.
CL Answer
What is magnesium stearate, what is it made from, and is it dangerous?
Learn more about magnesium stearate and its safety, based on evidence from clinical studies.
CL Answer
Is it important to take calcium and magnesium together?
Should you be taking calcium and magnesium together? Find out how to ensure optimal absorption of both calcium and magnesium by following these guidelines.
Recalls & Warnings
December 22, 2021
FDA Warns Seller of Liquid Magnesium, B-12, Berberine & More
On December 9, 2021, the FDA issued a warning letter to Wholly Liquid Nutritional Supplements LLC because it found statements on the company's website and social media about its products, including SpiroLaze, BioLaze, LiquiLaurin, VIT-B12, DeStress, and Omega Plus, to be ...
CL Answer
Does drinking coffee deplete vitamins or minerals, such as magnesium, in the body? Can adding magnesium or other minerals reduce the acidity or improve the flavor of coffee?
Coffee can reduce absorption or increase loss of certain vitamins and minerals. Find out which are affected, and what steps can be taken to reduce the effect of coffee on these nutrients.
CL Answer
When is the best time of day to take a multivitamin?
Find out the best time of day to take your multivitamin for best absorption of vitamins and minerals, whether you should take your multi with food, which vitamins and minerals may inhibit the absorption of other vitamins and minerals, or medications. ConsumerLab.com's answer explains.
CL Answer
I have low blood pressure. Are there any supplements I should avoid?
Find out which supplements can cause decreases in blood pressure, including melatonin, arginine, magnesium, and calcium.
CL Answer
Which supplements can cause diarrhea?
Can supplements like magnesium cause diarrhea? Find out which supplements may cause diarrhea, such as vitamin B12, curcumin, magnesium, vitamin C and fish oil.
CL Answer
Do any supplements help with restless legs syndrome?
Find out whether supplements or vitamins like iron, magnesium, vitamin E and others can help for restless leg syndrome (RLS). ConsumerLab.com's answer explains.
CL Answer
Are liquid or gummy vitamins better than tablets, capsules or softgels?
Find out if liquid or gummy vitamins and supplements are better than tablets, capsules or softgels, are better absorbed, or better for people who have had gastric bypass or who have other conditions.
CL Answer
Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?
Information about heart health supplements & vitamins that help with cholesterol, including sterol esters, CoQ10, and vitamin D, and which may be bad for the heart, like calcium.
CL Answer
Are there supplements I should take, or take differently, when intermittent fasting?
Supplements that may help when intermittent fasting. Information about whey protein, CoQ10, magnesium and others, plus coffee, fiber and more.
CL Answer
Are people with kidney disease at risk of getting too much potassium if they take a multivitamin? Which multivitamins are best for people with kidney disease?
Learn if people with kidney disease are at increased risk of getting too much potassium from multivitamins, find out which multivitamins do not contain potassium, and learn what other products should be avoided by people restricting potassium intake.
CL Answer
Do any supplements reduce the side effects of chemotherapy? Should any be avoided?
Find out if there are any supplements that can help with the side effects of chemotherapy, such as nausea, vomiting, diarrhea, nerve damage and others. ConsumerLab.com's answer explains.
CL Answer
Which vitamins and minerals should be taken together or separately?
Find out the best way to take vitamins and minerals and which vitamins and minerals should be taken together or separately for proper absorption. ConsumerLab answer explains the best way to take vitamins and minerals.
CL Answer
After taking a curcumin supplement, I started getting chronic diarrhea which went away when I stopped taking it. Can curcumin supplements cause diarrhea?
Learn more about the side effects of curcumin supplements, including diarrhea and other gastrointestinal discomfort.
Clinical Update
5/12/2020
Low-Cal Orange Juice For Kidney Stones?
Increasing citrate intake may reduce the risk of kidney stones. Find out how effective low-cal orange juice is at increasing citrate in our answer to the question: Can lemon juice, lemonade, or other juices reduce my chances of getting kidney stones?
CL Answer
Does taking a laxative interfere with the absorption of vitamins or minerals?
Information on laxative interactions with other medications and supplements such as Maalox, antibiotics, and statins and diabetes medications.
CL Answer
Tablets I purchased are becoming "crumbly" after a few weeks and are easy to break. Is there a problem with this supplement?
Should you be concerned if your supplement tablets have started to crumble? Learn more including the best way to keep pills from getting soft.
CL Answer
Is there a danger of getting too much calcium from Tums? I take them frequently for heartburn.
How many Tums should you be taking? Learn more about exceeding the recommended daily intake of calcium with Tums.
News Release
February 24, 2018
Magnesium, Curcumin, and Apple Cider Vinegar Rise in Popularity, While Probiotics Dip and Calcium Continues to Decline in Latest ConsumerLab.com Survey of Supplement Users
White Plains, New York, February 24, 2018 — A recent survey of 11,446 people who use dietary supplements shows that magnesium and curcumin and turmeric have leapt into the top 5 most popular dietary supplements, just behind vitamin D, fish oil and CoQ10.
CL Answer
Can glycine improve sleep, reduce depression, or reduce nighttime urinary frequency?
Can glycine really help improve sleep, reduce depression, or reduce nighttime urinary frequency? Lean more about glycine and its uses and benefits.
CL Answer
Which supplements and foods help relieve constipation and which can cause constipation?
Find out which supplements can cause constipation, including iron, calcium, protein powders and drinks and others. ConsumerLab.com's answer explains.
CL Answer
Which supplements help with arthritis?
Learn more about supplements for joint health, including products such as Wobenzym and Zyflamend and ingredients such as collagen, curcumin, glucosamine and chondroitin, hyaluronic acid, magnesium, omega-3 fatty acids, palmitoylethanolamide (PEA), SAMe, and others.
CL Answer
Do any supplements help reduce menstrual pain or symptoms of premenstrual syndrome (PMS)?
Find out which supplements help reduce premenstrual syndrome (PMS) symptoms, such as mood swings, pain, bloating, irritability and food cravings.
CL Answer
How much should I expect to pay for supplements? Are higher-priced supplements any better than low-priced brands?
Learn about the cost of supplements. Info including the best pricing on fish oil, CoQ10, vitamins C & D, magnesium, and calcium.
News Release
October 19, 2017
ConsumerLab.com Reveals Best Zinc Lozenges and Supplements for Shortening Colds and Correcting Deficiency
White Plains, New York, October 19, 2017 — In the U.S., mild zinc deficiency is fairly common. Zinc supplements can help to correct a deficiency, slow the progression of age-related macular degeneration, and have other benefits. Taken as a lozenge, zinc can shorten the duration of a cold.
News Release
June 21, 2017
Which Magnesium Is Best? ConsumerLab.com Tests Popular Brands and Reveals Its Top Pick
White Plains, New York, June 21, 2017 — Magnesium supplements are among the most popular supplements, but do you need to take one and, if so, which is best? To find out, ConsumerLab.com reviewed the clinical evidence, and purchased and tested popular magnesium supplements sold in the U.S.
CL Answer
What is hydrogen water? Is it beneficial for alertness, athletic performance, arthritis or other conditions, and is it safe?
Find out if hydrogen water has benefits with regard to alertness, side effects of radiotherapy in cancer patients, metabolic syndrome, athletic performance, rheumatoid arthritis, liver disease, and other conditions, and learn if it is safe to use.
CL Answer
Which supplements help reduce the risk of colorectal cancer?
Find out which supplements may reduce the risk of colorectal cancer, including folate, fiber, selenium, and vitamin D.
CL Answer
Could taking vitamin C (500 mg), CoQ10, grape seed extract, fish oil, vitamin D3/calcium/magnesium/zinc interfere with taking beta-sitosterol with dinner?
Learn about drug interactions & proper dosages for supplements such as CoQ10, vitamin D & C, fish oil, magnesium, zinc and grape seed extract.
CL Answer
Which supplements may benefit people with essential tremor, and which should be avoided?
Learn about supplements used for treating essential tremor, including caprylic acid (also called octanoic acid), thiamin (vitamin B1), cannabidiol (CBD), GABA (gamma-aminobutyric acid), and branched-chain amino acids. Find out which work and which don't. Also find out which supplements and food may make essential tremors worse.
CL Answer
Which supplements help with erectile dysfunction?
Supplements for erectile dysfunction. Find out which supplements can help with ED, including ginseng, L-arginine, and maca.
News Release
May 26, 2017
ConsumerLab.com Tests Reveal the Best Calcium Supplements
White Plains, New York, May 26, 2017 — Most people know that calcium is important for building and maintaining strong bones, but with so many different forms, dosages and ingredient combinations available on the market, choosing a calcium supplement can be difficult. To help, ConsumerLab.
CL Answer
I have been having dizziness for the past few months and am wondering if it could be a side effect of supplements I take. Which supplements cause dizziness?
Find out which supplements that may cause dizziness, vertigo, or imbalance, including garlic, melatonin, saw palmetto, and red yeast rice.
CL Answer
I've read that the best form of vitamin E is d-alpha tocopheryl succinate (it's recommended in the paleo diet, for example), but I don't see that listed on product labels. How can I find it?
Learn more about the different names and types of vitamin E, including d-alpha tocopheryl succinate, natural and synthetic.
News Release
May 17, 2017
Best Vitamin D? ConsumerLab.com Tests Popular Vitamin D Supplements and Reveals Its Top Picks
White Plains, New York, May 17, 2017 — Vitamin D is currently the most popular dietary supplement among people who regularly use supplements according to a recent survey by ConsumerLab.com.
CL Answer
Can any supplements improve or worsen symptoms of fibromyalgia?
Find out if any supplements may help improve fibromyalgia symptoms, learn which supplements do not seem beneficial, and find out if any supplements worsen symptoms.
CL Answer
What are the health benefits of chlorophyll and chlorophyllin, and are they safe?
Chlorophyll supplements are promoted for reducing body odor, preventing cancer, removing toxins from the body, improving digestive conditions and other uses, but do they work and are they safe? Find out and learn if such supplements actually contain chlorophyll.
CL Answer
Which supplements reduce the risk of stroke? Which increase the risk of stroke?
Find out which supplements (may help reduce the risk of stroke/might increase the risk of stroke.)
Clinical Update
7/31/2021
Juices for Kidney Stones?
Are cranberry juice or apple cider vinegar good sources of citrate to lower the risk of kidney stones? Find out in our updated answer to the question: Can lemon juice, lemonade, or other juices reduce my chances of getting kidney stones?
Clinical Update
2/24/2023
Calcium Absorption
How does the absorption of calcium lactate compare to that of other forms of calcium, such as calcium citrate and calcium carbonate? Find out in the What to Consider When Buying section of our Calcium Supplements Review, which also includes our Top Picks for calcium.
News Release
February 03, 2017
ConsumerLab.com Shows How Much Choline is Really in Supplements -- ConsumerLab.com Tests Phosphatidylcholine (From Soy Lecithin), Citicoline, Alpha-GPC and Other Choline-Containing Supplements, Identifying Top Picks
White Plains, New York, February 3, 2017 — Choline is an essential nutrient important for liver and brain function. It can be obtained from the diet and most people also produce significant amounts in their bodies.
News Release
November 15, 2016
ConsumerLab.com Finds Arsenic in Testing of Potassium Supplements -- Safer Choices Identified. Many Americans May Need More Potassium
White Plains, New York, November 15, 2016 — During a recent analysis of potassium supplements sold in the U.S. and Canada, ConsumerLab.com discovered significant contamination with the toxic heavy metal arsenic in pills from one brand.
Clinical Update
1/11/2011
Insulin Sensitivity and Magnesium
A recent study found that magnesium supplementation improved fasting glucose levels in insulin insensitive, obese people. While a similar effect has been seen in magnesium deficient people, the new study found benefit in people who had normal magnesium levels. The research suggests that magnesium may help prevent the onset of type 2 diabetes in some people. See the Magnesium Supplements Review for the type and dose of magnesium used and more >>
Clinical Update
5/03/2024
Mislabeled Magnesium
In response to a lawsuit, a popular brand of supplements is now providing refunds to people who purchased one of its magnesium products. The suit alleged that the products were mislabeled regarding the form of magnesium they contained. See the Update in our Magnesium Supplements Review, which includes our Top Pick for magnesium.
Similarly, one of the magnesium products covered in our recent Review also seems to have its form of magnesium mislabeled despite providing the correct amount of magnesium. We have changed its status to Not Approved (see the Update).
In addition, a company that sells a magnesium supplement that was Not Approved by us responded to a question about this from a ConsumerLab member. The response suggests that the company does not understand that its product is mislabeled (see the Update).
Clinical Update
4/09/2024
Magnesium Glycinate – What to Look For
Some magnesium glycinate supplements are not truly this chelated form of magnesium. Find out what to look for on labels to help ensure you’re getting chelated magnesium glycinate in the ConsumerTips section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.
Clinical Update
12/06/2022
Medications That Interact With Magnesium
Be aware that many types of medication can interact with magnesium, including one that was recently reported to raise magnesium levels, requiring a reduction in magnesium supplementation. Get the details, and learn about 15 types of medication that interact with magnesium in the Concerns and Cautions section of our Magnesium Supplements Review.
Clinical Update
7/31/2021
How Forms of Magnesium Compare
Magnesium supplements are used to raise magnesium levels (which requires good absorption from the gut), as laxatives, and as antacids. The best form of magnesium depends on why you're taking it. To help you choose the right form, we've put together a magnesium comparison table. Also see our Top Picks among magnesium supplements.
Clinical Update
8/02/2020
Magnesium Helps Vitamin D
Magnesium can boost blood levels of an important form of vitamin D, according to a recent study. For details on how much magnesium to take and when, see the Magnesium affects vitamin D levels section of the Vitamin D Supplements Review. To find a good magnesium supplement, see our Top Picks for magnesium.
Clinical Update
7/23/2014
Magnesium Improves Women's Physical Performance
A new study found that daily intake of a magnesium supplement significantly improved physical performance among older women compared to those given a placebo. Interestingly, none of the women in the study were deficient in magnesium based on blood tests. Get the details, including the dose and type of magnesium supplement used, as well as our quality ratings of magnesium supplements, in the updated Magnesium Supplements Review >>
News Release
June 10, 2015
ConsumerLab.com Tests Reveal Best and Worst Magnesium Supplements
White Plains, New York, June 10, 2015 — Magnesium supplements have become extremely popular, surpassing even calcium among frequent users of supplements. However, recent tests by ConsumerLab.
Clinical Update
5/07/2024
Magnesium Threonate for Memory?
Is magnesium threonate (found in Magtein) better than other forms of magnesium for memory and cognition? Find out in the Dementia and cognition section of our Magnesium Supplements Review.
Also see our Top Pick among magnesium supplements.
Clinical Update
1/10/2023
Magnesium for Gout?
Can low blood levels of magnesium increase the risk of gout, and does magnesium supplementation help? Find out in the What It Does section of our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.
Also see: Which supplements and foods help with gout and which may worsen it?
Clinical Update
7/29/2015
Magnesium Helps in Prediabetes
A recent study in people with prediabetes who were deficient in magnesium showed that a daily dose of magnesium significantly improved their glucose status. Details, along with our recent tests of magnesium supplements, are found in the Magnesium Supplements Review »
Clinical Update
8/06/2017
Magnesium Cream?
Is rubbing a cream into your skin a good way to get magnesium? We reviewed several studies of magnesium creams or sprays, including one just recently published. See what we found in the "What It Does" section of the Magnesium Supplements Review -- which includes our Top Picks among magnesium supplements.
Clinical Update
2/28/2017
Magnesium for Leg Cramps?
Magnesium supplements are sometimes promoted for leg cramps. However, a recent study among older men and women found that taking a particular form of magnesium at bedtime did not reduce nighttime leg cramps. Get the details about the study, plus other uses of magnesium, in the "What It Does" section of the Magnesium Supplements Review (which includes our tests of products) >>
Clinical Update
12/14/2019
Heart Disease & Magnesium
Women with the lowest daily intakes of magnesium were found to have the highest risk of fatal coronary heart disease in a recent study, which is consistent with other studies of magnesium and heart health. See the What It Does section of the Magnesium Supplements Review for details about this association. Also see our Top Picks among magnesium supplements.
Clinical Update
5/12/2013
Magnesium and Bone Health
New research shows why getting adequate magnesium is important for bones -- but this doesn't mean that you must take a magnesium-containing supplement. Get more information in our updated Magnesium and Calcium-Magnesium Supplements Review >>
Clinical Update
3/09/2011
Antacids and Magnesium -- Be Careful!
There is a new alert that long-term use (over a year) of proton pump inhibitors can cause low magnesium levels. Magnesium supplements can usually help. See the Magnesium Product Review for details including symptoms of magnesium deficiency and a list of affected products. More >>
Clinical Update
1/28/2020
When Magnesium Doesn't Seem to Help
Getting the recommended amount of magnesium has been associated with bone benefits. However, there was an increased risk of hip fracture among people who used a particular form of magnesium, according to a recent analysis. Get the details in the What It Does section of the Magnesium Supplements Review. Also see our Top Pick for magnesium.
Clinical Update
4/19/2020
Magnesium Can Boost Cognition
A clinical study has shown that cognitive function can be improved by as much as 9% in some people just by supplementing with magnesium. Get the details and find out if magnesium might help you in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium.
Clinical Update
5/01/2021
Best Form of Magnesium?
Find out how forms and formulations of magnesium differ, and their usefulness for different conditions. See the Choosing the Right Form of Magnesium section of our Magnesium Supplements Review. Also see our Top Picks for magnesium.
Clinical Update
10/10/2020
Magnesium for Muscle Soreness?
Can magnesium supplementation decrease muscle soreness after exercise? See what a new study found in the What It Does section of Magnesium Supplements Review. Also see our Top Picks for magnesium.
Clinical Update
9/22/2020
Magnesium for Lowering Blood Pressure?
Can magnesium supplementation lower elevated blood pressure? Find out what a new study showed in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium supplements.
Clinical Update
4/27/2021
Magnesium for Parkinson's Disease?
Can taking magnesium help treat Parkinson’s disease? Find out what research shows in the What It Does section of our Magnesium Supplements Review. Also, be aware that Parkinson's medication can affect absorption of magnesium and vice versa.
Clinical Update
7/13/2021
Magnesium for Leg Cramps?
Can magnesium supplementation reduce leg cramps? See what a recent analysis of the data showed for leg cramps in pregnant women. Also see the evidence for use by older men and women in our Magnesium Supplements Review.
Also see our answer to the question: Do magnesium creams, sprays and oils help with muscle pain and cramps? How about supplements?
Clinical Update
7/21/2021
Magnesium & Memory
Does supplementation with magnesium (as magnesium L-threonate, Magtein) improve cognition in people with dementia? Find out in the Dementia & Cognition section of our Magnesium Supplements Review.
Clinical Update
6/26/2021
Caution With Too Much Magnesium
Magnesium can be an effective laxative, but taking too much magnesium can be very dangerous, as was recently reported. Get the details in the Concerns and Cautions section of our Magnesium Supplements Review.
Also see our answer to the question: Which supplements can help treat constipation?
Clinical Update
11/23/2019
Magnesium-L-Threonate for Memory?
What is the evidence that a special form of magnesium helps people with memory and concentration impairment? Find out in the Dementia and cognition section of the Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.
Clinical Update
10/22/2019
Does Magnesium Reduce Exercise Soreness?
Can taking magnesium reduce muscle soreness after exercise? See what a new study found in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium supplements.
Clinical Update
6/09/2018
Magnesium & Metabolic Syndrome
A study shows that magnesium can significantly help some people suffering from metabolic syndrome (i.e., high blood sugar, high blood pressure, and related symptoms). Get the details in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.
Clinical Update
1/14/2020
Magnesium for Leg Cramps?
Magnesium if often touted for treating leg cramps. Does it really work? See what studies have shown, including a recent study among pregnant women, in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium.
Clinical Update
2/26/2012
Less Stroke With More Magnesium
Slightly higher intake of magnesium from the diet was associated with an 8% lower risk of stroke, based on an analysis of several studies. This doesn't necessarily mean you should get more magnesium from supplements, though. For details, see the updated information in the Magnesium Supplement Review. More >>
Clinical Update
12/15/2018
Magnesium for Optimal Vitamin D Level
Magnesium intake significantly affects levels of active vitamin D in the blood, according to a new study. This helps keep vitamin D in an optimal range and is another reason to get sufficient magnesium — which many people don't. For details, see the new information in the Vitamin D Supplements Review. (Also see our Top Picks for vitamin D and magnesium supplements).
Clinical Update
6/02/2018
Magnesium for Depression?
Magnesium may help some people with depression according to a recent placebo-controlled study. Learn more in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks for magnesium.
Clinical Update
11/19/2019
Magnesium for Memory
There is growing evidence that getting the right amount of magnesium reduces the risk of developing cognitive decline and dementia. For details, including results of a new study, see the Dementia and cognition section of the Magnesium Supplements Review. Also see our Top Pick among magnesium supplements.
Clinical Update
6/09/2023
Meds that Affect Magnesium
Some medications decrease magnesium in the body. These include medications that lower stomach acid as well as chemotherapy agents. Get the details in the Deficiency section of our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.
Also see: I take omeprazole (Prilosec), a proton pump inhibitor, to reduce stomach acid. Are there supplements I should avoid, or be taking, due to this drug?
Clinical Update
7/21/2023
Magnesium for Anxiety?
Does taking magnesium reduce anxiety? Find out what research has shown in the What It Does section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.
Also see: What are the best supplements for depression and anxiety?
Clinical Update
2/10/2023
Magnesium and Artery Calcification
Did magnesium supplementation slow coronary artery calcification in people with chronic kidney disease? See what a recent study found in the What It Does section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.
Also see: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?
Clinical Update
4/30/2024
Magnesium for Leg Cramps?
Does magnesium reduce leg cramps? Find out what studies have shown in our Magnesium Supplements Review.
Also see our recent Top Pick among magnesium supplements.
Clinical Update
5/10/2024
Magnesium, Sleep Apnea & Restless Legs
Does taking magnesium help with sleep apnea? Does it help with restless legs syndrome? These questions are addressed in our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.
Also see: Do any supplements help with restless legs syndrome?
Clinical Update
9/22/2023
Magnesium for Tinnitus?
Does taking magnesium reduce ringing in the ears from tinnitus? Find out in the What It Does section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.
Also see: Do any supplements or lifestyle changes reduce the symptoms of tinnitus? Is it true that some supplements can cause tinnitus?
Clinical Update
11/10/2023
Magnesium for Diabetes?
Does magnesium supplementation improve insulin sensitivity or blood sugar control in people with type 2 diabetes? See what a recent study found in the our Magnesium Supplements Review, which includes our Top Picks for magnesium.
Also see: Which supplements and foods can help lower or control blood sugar?
Clinical Update
8/05/2024
Magnesium for Dizziness?
Does taking magnesium reduce dizziness in people who experience vertigo with migraine (vestibular migraine)? Find out what a recent study found in the Migraine section of our Magnesium Supplements Review, which includes our Top Picks among magnesium supplements.
Clinical Update
6/04/2024
Magnesium for Sleep
Which form of magnesium helps with sleep? See the Sleep section of our Magnesium Review, which includes our Top Picks for magnesium.
Clinical Update
6/11/2024
Magnesium for Dental Implants?
Does taking magnesium improve the outcomes of dental implant placement? Find out what a recent study showed in the Bone Health section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.
Clinical Update
12/09/2022
Misleading Magnesium Products
Fourteen magnesium supplements sold on Amazon were found to be mislabeled and/or not contain the forms of magnesium claimed on labels, according to a report from a competing supplement company. Get the details in the What to Consider When Buying section our Magnesium Supplements Review.
Clinical Update
2/25/2022
Magnesium for Insomnia?
Can magnesium supplementation improve sleep in people with insomnia? Find out what research suggests in the What It Does section of our Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.
See our answer to the question: Which supplements can help me sleep and which cause insomnia?
Clinical Update
1/14/2022
Magnesium for Lowering Blood Pressure?
The FDA recently allowed supplements and foods that provide magnesium to make a claim regarding blood pressure reduction. But there is more to the story. Get the details in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.
Clinical Update
12/10/2021
Magnesium for Metabolic Syndrome?
Can magnesium supplementation lower blood sugar and blood pressure in people with metabolic syndrome? Learn what a new study found in the What It Does section of the Magnesium Supplements Review. Also see our Top Picks among magnesium supplements.
Clinical Update
12/23/2022
Magnesium with Chemotherapy?
Does magnesium supplementation help prevent chemotherapy-related nerve damage? Found out in our article about supplements and chemotherapy.
Also see our Top Picks among magnesium supplements.
Clinical Update
4/15/2022
Theraworx for Nighttime Leg Cramps?
Does Theraworx, a topical homeopathic magnesium product, relieve nighttime leg cramps? See what a study found in the Magnesium Creams, Sprays and Oils section of our Magnesium Supplements Review.
Clinical Update
7/26/2024
Caution with ZMA
Zinc magnesium aspartate (ZMA) is promoted among athletes for improving athletic performance and regulating sleep, but this supplement may actually reduce sleep time, according to a recent study. Get the details in the Concerns and Cautions section of our Magnesium Supplements Review which includes our Top Picks among magnesium supplements.
Clinical Update
9/09/2024
Magtein for Sleep?
Did taking magnesium L-threonate (Magtein) improve sleep? Find out what a recent study showed in the Sleep section of our Magnesium Supplements Review, which includes our Top Picks for magnesium.
Also see: Which supplements and lifestyle changes improve sleep, and which cause insomnia?
Clinical Update
9/16/2024
Magnesium’s Effects on Potassium?
Low blood levels of magnesium may cause levels of potassium to fall, but getting too much magnesium may also cause problems with potassium levels. Get the details in the Taking magnesium with potassium section of our Potassium Supplements Review, which includes our Top Picks for potassium supplements.
Clinical Update
4/30/2024
Magnesium for Anxiety and Sleep?
Do magnesium supplements reduce anxiety or improve sleep? See what studies have shown for anxiety and sleep and also learn about the product Natural Vitality Calm which we tested in our recent Magnesium Supplements Review.
Clinical Update
5/17/2024
Magnesium Top Pick
We’ve added a 2nd Top Pick for magnesium. It’s well absorbed, with a lower risk of causing diarrhea. Get the details in the Top Picks section of our recent Magnesium Supplements Review.
Clinical Update
5/23/2023
Magnesium for Arthritis?
Find out if magnesium is beneficial for preventing or reducing the severity of osteoarthritis or rheumatoid arthritis in our Magnesium Supplements Review.
Also see our answer to the question: Which supplements can help with arthritis?
Clinical Update
2/04/2017
Many Benefits of Magnesium
An analysis of studies involving more than one million people found that rates of stroke, heart failure, type 2 diabetes, and death were lower when intakes of magnesium were higher. For details see the "What It Does" section of the Magnesium Supplements Review (which includes our tests of products) >>
Clinical Update
9/23/2017
Magnesium and Dementia
A recent study found an association between magnesium levels in the blood and the risk of developing dementia. See the details in the "What It Does" section of the Magnesium Supplements Review >>
Clinical Update
10/03/2017
Caution When Taking Epsom Salt
A case of liver injury was recently reported in a man taking a large daily dose of Epsom salt (magnesium sulfate). Get the details, plus more about safety issues with magnesium supplements in the "Concerns and Cautions" section of the Magnesium Supplements Review >>
Clinical Update
7/08/2017
Magnesium Lowers Risk of Fracture
Higher intake of magnesium from the diet and supplements was found to significantly reduce the risk of fractures in a study of older men and women. Details are in the "What It Does" section of the Magnesium Supplements Review, which includes our Top Picks among products.
Clinical Update
7/13/2016
Magnesium Lowers Blood Pressure
Magnesium supplementation may help to lower blood pressure, but only in those who are deficient in the mineral, according to a new analysis. Get the details in the "What It Does" section of the Magnesium Supplements Review >>
Clinical Update
7/16/2016
Magnesium and Heart Disease
People with lower blood levels of magnesium were 36% more likely to die from heart disease than those with moderate levels according to a new, long-term study. For more details, see the "What It Does" section of the Magnesium Supplements Review >>
Clinical Update
10/14/2017
Reducing Dementia With Magnesium?
In a recently published study, investigators looked to see if taking a magnesium supplement reduces the risk of dementia. See what they found in the "What It Does" section of the Magnesium Supplements Review >>
Clinical Update
1/10/2021
Magnesium, Niacin and Blood Pressure
Two studies this week showed the risk of high blood pressure to be lowest among people with adequate, but not excessive, dietary intakes of magnesium and niacin.
Also, see which foods are good sources of magnesium and, separately, good sources of niacin.
Clinical Update
4/05/2022
Magnesium for Boosting Vitamin D
Did you know that supplementing with magnesium can help boost low vitamin D levels in some people? See what a recent study showed in the ConsumerTips section of our Vitamin D Supplements Review.
News Release
April 28, 2015
Best Supplements for Bone Health? ConsumerLab.com Finds Products with Multiple Ingredients More Likely to Contain Wrong Amounts
White Plains, New York, April 28, 2015 — Vitamin D and calcium each play a crucial role in bone health and are among the most popular supplement ingredients in the U.S., but recent ConsumerLab.
Recalls & Warnings
March 05, 2014
Seller of Aloe and Vitamin C Supplements Warned for Manufacturing Violations
On December 12, 2013, the FDA issued a warning letter to Health Breakthroughs International, following a facility inspection which found the company's products, MPS Gold 100, MPS Gold 3X and Amazing C, to be adulterated because they were prepared, packed, or held under conditions that violate ...
Recalls & Warnings
November 14, 2012
Maker of Vitamin C, Aloe and Sexual Enhancement Supplements Warned for Drug Claims and Misbranding
On October 22, 2012, the FDA issued a warning letter to Health Breakthroughs International, LLC after a review of the company's product labels and website found the dietary supplements Amazing C, MPS-Gold 100 and Power Herbal Formula to be promoted as drugs.
News Release
February 28, 2015
Use of Magnesium and Probiotics Rise, Multivitamins and Weight Loss Supplements Fall, According to ConsumerLab.com Survey
White Plains, New York, February 28, 2015 — A recent survey of over 10,000 people who use dietary supplements shows the most popular dietary supplement to be fish oil, followed by multivitamins, CoQ10, vitamin D, B vitamins, magnesium, calcium, probiotics, and vitamin C.
Clinical Update
5/19/2023
Antacids for Peptic Ulcers?
Are calcium, magnesium, or aluminum-containing antacids beneficial for peptic ulcers? Find out in our article about supplements for peptic ulcers.
Also find out which vitamins and minerals may be depleted when taking PPIs to treat peptic ulcer disease.
Clinical Update
5/05/2023
Counterfeit Supplements
Counterfeit versions of psyllium, a multivitamin, magnesium, and eight other types of supplements from a major brand have been sold online. Details and how to avoid this are in our Psyllium Supplements Review.
A popular brand of mushroom supplements has also reported counterfeit versions of its products. Details and how to avoid this are in our Lion's Mane Review.
Clinical Update
5/17/2024
Which Form of Chlorophyllin?
Chlorophyllin is a derivative of chlorophyll found in supplements, typically as sodium copper chlorophyllin. Some products contain sodium magnesium chlorophyllin, but does it have proven benefits? Find out in our article about chlorophyll and chlorophyllin.
Clinical Update
8/19/2022
Essential Tremor & Meat
Does consumption of meat increase the risk of essential tremor? Find out what's known in our updated CL Answer about supplements for essential tremor.
Also find out if magnesium is beneficial for essential tremor.
Clinical Update
7/12/2014
Vitamin D & Calcium for Diabetes Due to Pregnancy
A new study found supplementation with a combination of vitamin D and calcium improved fasting blood sugar levels, serum insulin levels, and insulin sensitivity in women with gestational (pregnancy-related) diabetes. For more details, including dosage, as well as our tests and comparisons of vitamin D and calcium supplements, see the update to the Vitamin D Supplements Review (Including Calcium, Vitamin K, Magnesium) >>
Clinical Update
6/20/2014
Too Much Calcium for Some?
A new study found that supplementing with even moderate amounts of calcium may cause abnormally high calcium levels in the urine (a risk factor for kidney stones) of some postmenopausal women, even when total calcium intake doesn't exceed the recommended daily allowance. Get the details in the update to the Calcium Supplements Review (Including Vitamin D, Vitamin K, and Magnesium) >>
Clinical Update
6/24/2014
Vitamin D May Help Lower Blood Pressure
A recent study in people with mild to moderate high blood pressure showed that taking a vitamin D supplement helped lower blood pressure. Subjects in the study were already taking a calcium channel blocker (nifedipine), but taking vitamin D reduced blood pressure by several additional points. For details, including the dose of vitamin D used, as well as our tests of vitamin D supplements which can provide this dose, see the updated Vitamin D Supplements Review (Including Calcium, Vitamin K, and Magnesium) >>
Clinical Update
9/28/2021
Leg Cramp Causes and Treatments?
Find out if common medications can cause nighttime leg cramps. Also find out if supplements or topical products such as magnesium creams can help.
Clinical Update
1/15/2019
Don't Take Minerals With Certain Supplements
Taking minerals like calcium and magnesium can dramatically reduce the absorption of carotenoids like lycopene, beta carotene, and astaxanthin. Get the details in the Concerns and Cautions section of the Lycopene Supplements Review.
Clinical Update
6/02/2020
Vitamin D for COVID-19 Patients
A study evaluated the effects of giving vitamin D, magnesium, and vitamin B12 to COVID-19 patients. See the results in the COVID-19 section of the Vitamin D Supplements Review. Also see our Top Picks for vitamin D.
News Release
August 21, 2013
Labels on Potassium Supplements May Confuse, But Product Quality is High According to ConsumerLab.com
White Plains, New York August 21, 2013 — How much potassium would you expect from a supplement called "Potassium Gluconate 595 mg"? The correct answer is just 99 mg, as ConsumerLab.com explains in its new Potassium Supplements Review, published online today.
News Release
May 30, 2012
ConsumerLab.com Identifies Best and Worst Magnesium Supplements Based on Tests and Comparisons
White Plains, New York — MAY 30, 2012 — Magnesium supplements are among the most popular supplements in the U.S. But which magnesium supplements are best? ConsumerLab.
News Release
April 26, 2011
Problems discovered with eight vitamin D supplements in study by ConsumerLab.com -- Incorrect amounts of vitamins, lead contamination, and labeling infractions identified.
White Plains, New York — April 26, 2010 — Among 28 vitamin D supplements recently selected for independent testing, problems were found with 8 products, 29% of those reviewed, according to ConsumerLab.com.
News Release
May 19, 2009
Review of Magnesium Supplements by ConsumerLab.com Shows One-Quarter Fail Quality Tests
WHITE PLAINS, NEW YORK — MAY 19, 2009 — ConsumerLab.com reported today that among twelve magnesium supplements selected for testing, only nine met quality standards. One supplement contained only 45.
News Release
October 30, 2007
Recently tested magnesium supplements free of lead, but one product missing most of its ingredient according to ConsumerLab.com — First Major Product Review of Potential "Life-Extending" Ingredient
WHITE PLAINS, NEW YORK — OCTOBER 30, 2007 — ConsumerLab.com reported today that its tests of magnesium supplements revealed one product to contain only 46.4% of its claimed amount of the essential mineral, despite boasting a "GMP" (Good Manufacturing Practices) seal on its label.
Recalls & Warnings
April 03, 2024
FDA Warns Ambaya Gold for Promoting Products for Depression, Cancer, & Arthritis
On December 5, 2023, the FDA issued a Warning Letter to Ambaya Gold Health Products, LLC following review of the company’s website and social media, which found statements about the company’s Brain Balance, Immune System Boost, Dentist In A Bottle, Essensiac, Fulvic Green, Silver ...
Recalls & Warnings
April 27, 2023
Seller of Magtein, Veggie Caps, & More Warned for Drug Claims, Manufacturing Violations
On March 8, 2023, the FDA issued a warning letter to Spartan Enterprises Inc., dba Watershed Wellness Center, after a review of the company’s website found statements about its Dr. Bob’s Naturals Spirulina, Dr. Bob’s Naturals Magtein, Dr.
Recalls & Warnings
November 21, 2022
6 Supplement Companies Warned by FDA for Making Cholesterol Claims
On May 4, 2022, the FDA issued warning letters to six supplement companies following review that found statements made on company websites and Walmart purchase pages suggesting the products could lower cholesterol to be drug claims, which are not permitted for dietary supplements.
News Release
June 15, 2005
Two magnesium supplements fail testing due to lead contamination. Nineteen others pass. Report now available.
WHITE PLAINS, NY — JUNE 15, 2005 — ConsumerLab.com has released its latest report on the quality of magnesium supplements sold in the U.S. In addition to being an essential mineral, magnesium may help prevent migraine headaches, menstrual pain, PMS, and leg cramps during pregnancy.
News Release
July 16, 2002
ConsumerLab.com finds lead contamination remains a problem for certain mineral supplements — Lead found in iron, magnesium and, most recently, potassium pills
WHITE PLAINS, NY — July 16, 2002 — ConsumerLab.com announced today that its testing has shown that approximately 5% to 10 % of certain mineral supplements are contaminated with lead. The findings are based on ConsumerLab.
Recalls & Warnings
July 22, 2022
FDA Warns Seller of Vision, Calcium & Magnesium Supplements and More
On June 14, 2022, the FDA issued a warning letter to New Sun Inc. following inspection of the company’s website which found statements about the company’s products to be drug claims.
Recalls & Warnings
July 26, 2023
FDA Warns Wise Women’s Choice for Promoting Plant-Based Product for Contraception
On July 20, 2023, the FDA issued a warning letter to Wise Women’s Choice following a review of the company’s website and social media, which found statements about the company’s Wise Women’s Choice products to be drug claims because products were intended to affect ...
Recalls & Warnings
August 14, 2023
Liver Injury Linked to "Immune Booster" Supplement Sold on Amazon
A 27-year-old woman in Pennsylvania was admitted to intensive care for drug-induced liver injury after taking Prodigy Life HRP-AID, a supplement sold on Amazon and promoted as an "immune system booster" to reduce the intensity and frequency of cold sore outbreaks, according to a ...
News Release
May 15, 2002
ConsumerLab.com lists magnesium products that passed testing — Some products fail due to excess magnesium and lead contamination
WHITE PLAINS, NY — May 14, 2002 — ConsumerLab.com today released results of its Product Review of Magnesium Supplements. Seventeen of the nineteen products tested by ConsumerLab.com passed the review. Among the products that failed, one contained nearly 50% more magnesium than claimed.
Recalls & Warnings
March 09, 2022
FDA Warns Seller of Magnesium, CBD, Herbal Extracts & More
On February 9, 2022, the FDA issued a warning letter to Bea Lydecker’s Naturals, Inc.
Recalls & Warnings
January 26, 2023
FDA Warns Seller of Canary Seed Omega-3
On November 16, 2022, the FDA issued a warning letter to Evimeria El Aztecano, Inc. following review of the company’s Yerbas Finas Leche de Alpiste con Guanabana y Omega-3 product labeling, which found the product contained less magnesium and potassium than claimed on the label.
Recalls & Warnings
February 24, 2023
Bountiful Charged with “Review Hijacking,” False Advertising of Nature’s Bounty Supplements on Amazon
On February 16, 2023, the Federal Trade Commission (FTC) charged The Bountiful Company (formerly NBTY), whose brands include Nature’s Bounty and Sundown, with deceptively using Amazon reviews and badges (such as “#1 Best Seller” and “Amazon’s Choice”) from its ...
Recalls & Warnings
January 17, 2015
Maker of Magnesium and Potassium Supplements Warned for Manufacturing Violations
On December 23, 2014, the FDA issued a warning letter to Nutri Spec, Inc.
Recalls & Warnings
September 28, 2022
FDA Warns Muscle Sports for Joint Health, Immune & Workout Supplement, Vitamin C, Elderberry, and Other Claims
On September 23, 2022, the FDA issued a warning letter to Muscle Sports Products, LLC following inspection of the company’s websites which found statements about company products, including Join Revolution Capsules, IMMUNITY + Powder, Rhino Rampage PUMPED Capsules, Attack Pre-Workout ...
Recalls & Warnings
September 18, 2012
Men’s Sexual Enhancement Supplement Containing Prescription Drug Recalled
On September 12, 2012, Body Basics Inc. issued a voluntary nationwide recall of ACTRA-Sx 500 Dietary Supplement Capsules after independent laboratory testing confirmed the supplement contains the prescription drug sildenafil citrate.
Recalls & Warnings
June 08, 2021
FDA Warns Seller of "CoronaBox" Containing Vitamin D, Probiotics & More for Unsupported Claims
On May 24, 2021, the FDA issued a warning letter to Everything Health LLC following a review of the company's website by the FDA and Federal Trade Commission (FTC) which found the company promoted its CoronaBox (which contains cordyceps, vitamins, and K2, magnesium, ginger, probiotics ...
Recalls & Warnings
February 19, 2014
Seller of Sexual Enhancement Supplements Warned For Manufacturing Violations
On February 11, 2014, the FDA issued a warning letter to Maximus Niterider International Group, Inc.
Recalls & Warnings
July 05, 2013
Seller of Vision Supplement Warned For Drug Claims
On June 25, 2013, the FDA issued a warning letter to Nutrient Synergy, Inc., following a review of the company's website which found statements made about the dietary supplement Nepretin to be drug claims.
Recalls & Warnings
July 16, 2019
FDA Warns Seller of Magnesium and CBD
On July 9, 2019, the FDA issued a warning letter to Ceba-Tek, Inc.
Recalls & Warnings
November 02, 2019
Brain Supplement Claims to Treat Brain Injuries, Alzheimer's Are Deceptive, Says FTC
On November 1, 2019 the FTC filed a lawsuit against Neora LLC (formerly Nerium International) for making false claims that the supplement Neora EHT (formerly called Nerium EHT) can treat concussions and chronic traumatic encephalopathy caused by repetitive brain trauma, Alzheimer's ...
Recalls & Warnings
October 29, 2019
Publisher Sued for Promoting "Phony Diabetes Cure"
On October 24, 2019 the FTC filed a lawsuit against the publisher of books, newsletters, and other publications aimed at seniors that falsely promise to cure type 2 diabetes.
Recalls & Warnings
January 30, 2018
Limbrel for Osteoarthritis Recalled Due to Risk of Adverse Effects
On January 26, 2018, Primus Pharmaceuticals, Inc. of Scottsdale, Arizona issued a recall of all unexpired lots of Limbrel products.
Recalls & Warnings
February 16, 2016
Work Out and Weight Supplements Contain Synthetic Amphetamine-Like Compound
On February 3, 2016, the FDA issued a warning letter to ATS Labs, LLC because labels for the company's work out and weight loss supplements CFI, Weapon-X Pre-Workout Extreme, and Lady Lean list a synthetic, amphetamine-like compound, 4-amino-2-methylpentane citrate (also called ...
Recalls & Warnings
October 27, 2015
Serious Cardiovascular Risks Associated with Strontium, Health Canada Warns
Strontium supplements should not be taken by people with a history of, or risk factors for heart disease, circulatory problems, or blood clots, according to a safety review conducted by Health Canada (the Canadian equivalent of the FDA).
Recalls & Warnings
April 29, 2015
FDA Targets Weight Loss and Workout Supplements Listing Synthetic Stimulant DMBA
On April 24, 2015, the FDA issued warning letters to sellers of weight loss and workout supplements that list a synthetic, amphetamine-like compound called 1,3-dimethylbutylamine (DMBA) on product labels.
Recalls & Warnings
March 13, 2018
FDA Warns Seller of Milk Thistle, Chromium, Joint Supplements & More for Manufacturing Violations
On March 9, 2018, the FDA issued a warning letter to Carol Bond Health Foods following a facility inspection which found a number of the company's products, including Dolomite, Lipo Fat Fighter, ThistleX, Injuv, and Vinpocentine, to be ...
Recalls & Warnings
June 11, 2016
Vitacost Settles Magnesium Supplement Lawsuit
Supplement retailer Vitacost.com has settled a class action lawsuit which alleged the magnesium content of the following Vitacost magnesium products was misrepresented because the labels failed to list magnesium oxide as an ingredient:
Recalls & Warnings
November 12, 2017
Weight Loss and Cleanse Supplements Contain Adulterated and Improperly Labeled Ingredients, FDA Warns
On November 2, 2017, the FDA issued a warning letter to Create-A-Pack Foods, Inc.
Recalls & Warnings
January 10, 2018
Lithium Supplement Contaminated With E. Coli, Health Canada Warns
On December 1, 2018, Health Canada (the Canadian equivalent of the FDA) warned consumers that it found Smart Brain Formulations Serotonin Support, a lithium ororate supplement sold on the website Robert Lamberton Consulting, to be contaminated with E. choli (Escherichia coli).
Recalls & Warnings
August 06, 2014
Seller of Mineral and Joint Supplements Warned for Manufacturing Violations and Drug Claims
On July 25, 2014, the FDA issued a warning letter to Mezotrace Corporation following a facility inspection which found the company's products, including Calcium/Magnesium Natural Minerals & Trace Elements, Calcium/Magnesium Natural Minerals & Trace Elements with Vitamin D, and Calcium/Magnesium ...
Recalls & Warnings
July 18, 2018
Maker of Vitamin B12 and Multimineral Supplements Warned by FDA
On July 6, 2018, the FDA issued a warning letter to Aegle Nutrition, LLC, following a facility inspection which found some of the company's products, including Tropical Oasis Ionized Trace Minerals, Tropical Oasis Ultra Methyl B12, and Tropical Oasis Premium Vitamin B12 to be ...
Recalls & Warnings
March 15, 2013
Maker of Liquid Supplements Warned For Manufacturing Violations and Drug Claims
On January 31, 2013, the FDA issued a warning letter to Liquid Health, Inc.
Recalls & Warnings
July 11, 2017
FDA Warns Dr. Carolyn Dean of Drug Claims Made for Magnesium, Calcium & Other Mineral Supplements
On June 27, 2017, the FDA issued a Warning Letter to Dr. Carolyn Dean of New Capstone, Inc.
Recalls & Warnings
March 10, 2015
Maker of Magnesium, Calcium, Zinc, B Vitamins and More Warned for Manufacturing Violations, Drug Claims
On January 8, 2015, the FDA issued a warning letter to Complete H2O Minerals, following a facility inspection which found the company's products, including Sulfur Concentrate, Copper, Extra Strength Copper, Extra Strength Magnesium, Extra Strength Zinc, Platinum, Gold, Indium, Molybdenum, ...
Recalls & Warnings
February 13, 2013
FDA Warns Maker of Weight Loss and Whey Protein Supplements For Manufacturing Violations and Misbranding
January 25, 2013, the FDA issued a warning letter to dietary supplement manufacturer SciLabs Nutraceuticals, following a facility inspection which found the company's dietary supplements and supplement ingredients, including N-Large 2, Flo-Gard AB, Nitrogen Glutamine capsules, Nutritech nutritional ...
Recalls & Warnings
May 23, 2015
Seller of Magnesium, Calcium, Silver and More Warned for Manufacturing Violations, Drug Claims
On May 8, 2015, the FDA issued a warning letter to Pick and Pay, Inc.
Recalls & Warnings
October 09, 2014
New Synthetic Stimulant Found in Supplements
A synthetic stimulant never before studied in humans, 1,3-dimethylbutylamine (DMBA), was found in a dozen supplements sold by U.S. distributors in dosages from 13 to 20 mg per serving (Cohen, Drug Test Analys 2014).
Recalls & Warnings
September 30, 2015
Weight and Energy Supplement Contains Synthetic "Amphetamine"
On September 21, 2015, the FDA issued a warning letter to TruVision Health LLC. because the company's supplement tru Weight & Energy lists a synthetic, amphetamine-like compound, AMP (also called 1,3-dimethylbutylamine or DMBA) on product labels.
Recalls & Warnings
August 22, 2015
Synthetic Amphetamine, Less Protein and More Sugar Than Claimed Found in Workout Supplements
On August 7, 2015, the FDA issued a warning letter to New Dawn Nutrition, Inc.
Recalls & Warnings
November 06, 2014
Seller of Cholesterol, Arthritis Supplements and More Warned for Drug Claims
On October 17, 2014, the FDA issued a warning letter to Vitamins Direct (USA) and Golden Pride, Inc., which distribute Flexezy and Physician's Signature brands of dietary supplements, following a facility inspection which found statements made about certain supplements to be drug claims.
Recalls & Warnings
September 05, 2014
Seller of "Nerve", "Cleanse" and Probiotic Supplements Warned for Drug Claims
On July 30, 2014, the FDA issued a warning letter to Plexus Worldwide, Inc., following a review of the company's website and product labels, which found statements made about Fast Relief, BioCleanse and ProBio5 to be drug claims.
Recalls & Warnings
February 13, 2013
Manufacturer of Heart, Multivitamin, Cranberry, and Longevity Supplements Warned For Adulteration and Drug Claims
On January 29, 2013, the FDA issued a warning letter to M.D.R. Fitness Corp. following a facility inspection which found violations of good manufacturing practices which cause the company's products to be adulterated.
Recalls & Warnings
November 30, 2013
"Diuretic" Weight Loss Supplement Recalled
On November 29, 2013, IQ Formulations issued a recall of all lots of diuretic weight loss supplement HYDRAVAX because one lot of the supplement was found to contain an undeclared prescription diuretic drug.
Recalls & Warnings
December 26, 2012
Seller of Blood Sugar, Depression and Sleep Supplements Warned For Making Drug Claims
On October 15, 2012, the FDA issued a warning letter to BioNeurix Corporation after statements found on the company's website, http://www.pharma-tree.com, were found to promote the dietary supplements Blood Sugar 360, Amoryn, Seredyn, and Mellodyn as drugs.
Recalls & Warnings
October 10, 2014
Seller of Multivitamin Warned for Drug Claims
On September 25, 2014, the FDA issued a warning letter to Multimmunity, Inc., following a review of the company's website which found statements made about the dietary supplement Multimmunity to be drug claims.
Recalls & Warnings
February 14, 2017
Life Extension Warned for Drug Claims
On February 1, 2017, the FDA issued a warning letter to Life Extension Foundation Buyers Club, Inc.
Recalls & Warnings
September 23, 2014
Maker of Joint and Weight Products Warned for Hidden Drugs, Manufacturing Violations
On September 15, 2014, the FDA issued a warning letter to West Coast Laboratories, Inc., because the company's joint health supplements, Super ArthGold and Pro ArthMax, were found to contain hidden drugs.
Recalls & Warnings
April 16, 2014
Seller of Aloe, Thyroid and Other Supplements Warned for Manufacturing Violations and Drug Claims
On March 21, 2014, the FDA issued a warning letter to Aloe Man International Corp.
Recalls & Warnings
October 30, 2014
Seller of Vitamin C, Iron and Detox Supplements Warned for Violations, Drug Claims
On October 16, 2014, the FDA issued a warning letter to Vitalab Co., Inc. (which manufactures and labels supplements for three distributors: V.E. Irons, Inc., Springreen Products, Inc., and Sonne's Organic Foods, Inc.
Recalls & Warnings
August 30, 2012
Supplement Company Warned For Medical Claims and Misbranding Of Omega-3, CoQ10, Noni Juice And More
On July 12, 2012, the FDA issued a warning letter to Alfa Vitamins Laboratories, Inc.
Recalls & Warnings
June 22, 2011
Recall of Calcium & Magnesium Softgels Containing Excessive and Potentially Toxic Amounts of Vitamin D
On or about June 7, 2011, NOW Foods announced the following recall to retailers. ConsumerLab.com was subsequently made aware of the recall by a ConsumerLab.com member.
