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Acai Berry (1)
Acetyl-L-Carnitine Supplements (11)
Alginate Supplements (For Reflux) (5)
Aloe Juices, Gels, and Supplements (2)
Alpha-Lipoic Acid Supplements (10)
Apple Cider Vinegar (12)
Ashwagandha Supplements (34)
Astaxanthin Supplements (5)
Avocado Oil (6)
B Vitamin Supplements (182)
Berberine Supplements (11)
Black Currant, Borage, Evening Primrose, Flax and Hemp Oil Review (11)
Bone Broth (2)
Calcium Supplements (47)
Cancer Prevention (1)
CBD & Hemp Extract Supplements (60)
Chia Seed (3)
Cholesterol-Lowering Supplements (Sterols/Stanols and Policosanol) (12)
Choline Supplements (20)
Chromium Supplements (1)
Cinnamon Supplements and Spices (23)
CLA Supplements (2)
Cocoa Powders, Dark Chocolate, Extracts, Nibs & Supplements (64)
Coconut and MCT Oils (14)
Coconut Waters (2)
Collagen Supplements (41)
CoQ10 and Ubiquinol Supplements (47)
Cranberry Juices and Supplements (19)
Digestive Enzymes (10)
D-Mannose Supplements (3)
Echinacea Supplements (3)
Elderberry Supplements (5)
Electrolytes (3)
Essential Oils (6)
Extra Virgin Olive Oil (41)
Fish Oil /Omega-3 Fatty Acid Supplements (247)
Flaxseed (9)
Fruits, Veggies, and Other Greens Supplements (15)
GABA Supplements (3)
Garcinia Cambogia (HCA) Supplements (6)
Garlic Supplements (12)
Ginger Supplements (18)
Ginkgo Supplements (8)
Ginseng Supplements (10)
Gluten-Free Grains (2)
Green Coffee Bean Extract Supplements (2)
Green Tea Supplements and Drinks (65)
HGH - human growth hormone (1)
Hoodia Supplements (1)
Huperzine A Supplements (2)
Inactive Ingredients (12)
Iron Supplements (45)
Joint Health for Animals (12)
Joint Health Supplements (25)
Kelp (Supplements) (4)
Lactose Intolerance Products (1)
L-Arginine Supplements (23)
L-Citrulline Supplements (2)
Lion's Mane and Chaga Mushroom Supplements (10)
Low-Dose Lithium Supplements (6)
L-Theanine Supplements (9)
L-tryptophan and 5-Hydroxy-L-tryptophan (5-HTP) (4)
Lycopene Supplements (7)
Lysine Supplements (1)
Maca Supplements (2)
Magnesium Supplements (67)
Melatonin Supplements (83)
Menopause Supplements (22)
Milk Thistle Supplements (4)
Multivitamin and Multimineral Supplements (40)
Muscle & Workout Supplements (Creatine and BCAAs) (34)
NAC (N-Acetyl Cysteine) Supplements (24)
NAD Boosters (NAD+/NADH, Nicotinamide Riboside, and NMN) (19)
Nutrition Bars (4)
Oats (Rolled and Steel-Cut) Review (15)
Olive Leaf Extract (1)
Phosphatidylserine Supplements (2)
Plant Based Milks (11)
Pomegranate Juice and Supplements (1)
Potassium Iodide/Iodate (Radioprotective Agents) (1)
Potassium Supplements (18)
PQQ (Pyrroloquinoline Quinone) (2)
Prebiotics (11)
Probiotics (145)
Prostate Supplements (Saw Palmetto and Beta-Sitosterol) (12)
Protein Powders (82)
Psyllium Fiber Supplements (14)
Quercetin & Rutin Supplements (14)
Red Yeast Rice Supplements (26)
Reishi Mushroom Supplements (10)
Resveratrol (Red Wine, Knotweed and Other Sources) (18)
Saffron Supplements (4)
SAMe Supplements (6)
Seaweed Snacks and Foods (3)
Selenium Supplements (13)
Sexual Enhancers (4)
Shelled Walnuts (Halves & Pieces) (2)
Shilajit Supplements (1)
St. John's Wort Supplements (5)
Taurine Supplements (1)
Tuna, Salmon & Sardines (30)
Turmeric and Curcumin Supplements and Spices (113)
Valerian Supplements (5)
Vision Supplements with Lutein, Zeaxanthin & AREDS2 Formulas (28)
Vitamin A Supplements (10)
Vitamin C (43)
Vitamin D Supplements (323)
Vitamin E Supplements (23)
Vitamin K Supplements (18)
Water Filter Pitchers (29)
Weight Loss Supplements (7-Keto DHEA, Forskolin and Stimulant Blend Supplements) (3)
Wellbutrin vs. Generic Bupropion (2)
Zinc Supplements, Lozenges, and Melts Review (26)
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2025

January

January

Gluten Concern with Trader Joes’ Oats

January 02, 2025
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Be aware that a separate testing group reported excessive gluten in an oat product from Trader Joe’s. For details, see our Oats Review, which includes our Top Picks among oat products.

Is NMN Still Sold?

January 02, 2025
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NMN (nicotinamide mononucleotide) supplements are no longer sold by Amazon and Walmart. Find out why and where NMN is still sold in our NAD Booster Supplements Review, which includes our Top Picks among products.

Melatonin for Mild Cognitive Impairment?

January 02, 2025
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Did taking melatonin improve cognition among older people with mild cognitive impairment in a recent study? Find out in our Melatonin Supplements Review, which includes our Top Picks among melatonin supplements.

Fish Oil for Long COVID?

January 02, 2025
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Does taking fish oil improve symptoms of long COVID such as shortness of breath, cough, fatigue, lack of taste, or loss of smell? Find out what a recent study showed in the COVID-19 section of our Fish Oil Supplements Review, which includes our Top Picks for fish oil.

Heavy Metals in Multivitamins?

January 06, 2025
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Tests conducted by a separate group reported "unsafe" levels of lead, arsenic, and/or cadmium in a children’s multi and a prenatal supplement (which ConsumerLab also tested). See our take on this in our Multivitamin and Multimineral Supplements Review, which includes our Top Picks among multivitamins.

Which Prenatals Have The Right Stuff?

January 06, 2025
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Many prenatal vitamins may not correct nutrient deficits that occur in pregnancy, according to a recent study. Find out which products are closest to providing the right ingredients in the Prenatal section of our Multivitamin and Multimineral Supplements Review.

Heavy Metals in Hemp Seeds?

January 06, 2025
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Testing of Manitoba Harvest Organic Hemp Hearts by a separate group identified levels of cadmium and arsenic it considered unsafe for children. See our take on these results in our article about hemp seeds.

Green Tea Interaction for Men

January 06, 2025
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Green tea may significantly increase blood levels of a common medication for men. Get the details in the Concerns and Cautions section of our Green Tea Review, which includes information about many other green tea interactions, including with statins and blood-thinners.

Also see our Top Picks among green tea beverages and supplements.

Risk With Too Much Vitamin A

January 06, 2025
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Hypercalcemia (too much calcium in the blood) is a known risk when taking too much vitamin D, but it can also occur with high doses of vitamin A, as highlighted by a recent report. Get the details in our Vitamin A Supplements Review, which includes our Top Picks for vitamin A and beta-carotene.

Another Salmon Gone

January 09, 2025
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We recently learned that our Top Pick for canned, sockeye “red” salmon, is no longer available. See our current recommendation in the Top Picks section of our Canned Fish Review – which includes our picks for tuna, pink salmon, sardines, and herring. (We are currently testing more canned fish products, based on members’ suggestions, so stay tuned for results.)

Estrogen Cream Side Effects

January 09, 2025
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Be aware that a formulation change to a popular OTC estrogen cream may be causing unexpected side effects. See our article about estrogen creams for wrinkles.

Supplements for Hair

January 09, 2025
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Find out if HUM Hair Strong Gummies or Nutrafol Men increased hair growth in recent studies. This, and more, is in our article about supplements for hair.

Low Magnesium Due to PPI Use

January 09, 2025
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Be aware that long-term use of proton-pump inhibitors (PPIs, such as Prilosec, Nexium, and Prevacid) can cause magnesium deficiency. Magnesium supplementation is sometimes not enough to reverse this. Learn more in our Magnesium Supplements Review, which includes our Top Picks for magnesium.

Baking Soda for Heartburn?

January 09, 2025
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Baking soda may temporarily relieve heartburn but be aware that overuse can have adverse effects. Get the details in our article about supplements and foods for reflux and heartburn.

Also see our Top Picks among alginate supplements for reflux.

Protein Powder Contamination

January 13, 2025
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Recent tests of protein powders by a separate group showed that certain forms of protein were more likely than others to be contaminated with lead and cadmium. For details, see our Protein Powders Review, which includes our Top Picks for protein powders and shakes.

Plastic from Tea Bags

January 13, 2025
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A small study suggested that some plastic tea bags release much larger amounts of nanoplastics than others. For details, and how to avoid nanoplastics from tea bags, see our Green Tea Review, which includes our Top Picks for green tea.

Phthalates Found in Avocado Oil

January 13, 2025
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Testing of avocado oils by a separate research group detected phthalates (hormone disruptors) in all samples. Find out how these amounts compare to safety limits in the Quality Concerns section of our Avocado Oils Review, which includes our Top Pick for avocado oil.

Viviscal and Liver Injury?

January 13, 2025
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A CL member who took the hair growth supplement Viviscal attributed liver damage to the product. Find out if there have been similar reports, or ingredients in Viviscal linked with liver injury, in our article about supplements for hair.

Iron & Thyroid Function

January 13, 2025
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Iron deficiency can cause an underactive thyroid (hypothyroidism), but it’s important that iron not be taken at the same time as thyroid medication. Get the details in our Iron Supplements Review, which includes our Top Picks for iron.

Also see our article about supplements and thyroid function.

Calcium Before Exercise?

January 16, 2025
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A recent study suggested that taking calcium before load-bearing exercise helped prevent bone turnover, but is this important? Find out in the Bone health and fractures section of our Calcium Supplements Review, which includes our Top Picks for calcium.

Vitamin D & Migraine

January 16, 2025
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Low blood levels of vitamin D have been linked with higher migraine frequency. A new study suggests why. Get the details in our Vitamin D Supplements Review, which includes our Top Picks for vitamin D.

Also see our article about supplements and migraine.

Red No. 3 To Be Banned

January 16, 2025
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The colorant, Red No. 3, will be banned from foods and supplements starting in 2027. Find out why in our article about Other Ingredients in Supplements.

Prenatal for Men

January 16, 2025
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AlphaSperm Men’s Prenatal + was recently Approved for quality by ConsumerLab through our voluntary Quality Certification Program and added to our Multivitamin and Multimineral Supplements Review.

Ionic Foot Bath Claims

January 20, 2025
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Ionic foot baths (such as IonCleanse and Healifeco Ionic Foot Spa) allegedly draw heavy metals out of the body. But is this supported by evidence? Find out in our article about foot pads and foot baths for removing toxins from the body.

Hormone Harmony Supplements?

January 20, 2025
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Are Hormone Harmony (for menopause) and other Happy Mammoth supplements worth taking? We reviewed the evidence. See our conclusions in our article about these products.

Also see our take on The 'Pause Nutrition supplements by Dr. Mary Claire Haver.

Nicotinamide Riboside for Cognition?

January 20, 2025
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Did nicotinamide riboside improve memory, attention or cognition among older people with cognitive decline in a recent study? Find out in the Nicotinamide riboside section of our NAD Booster Supplements Review, which includes our Top Picks for nicotinamide riboside.

Also see: Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

Quinoa for Blood Sugar Control

January 20, 2025
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Quinoa was found to be more effective than mixed grains at controlling blood sugar in a recent study. Learn more in our Gluten-Free Grains Review, which includes our Top Picks for buckwheat, quinoa, sorghum, millet and teff.

Nicotinamide for Glaucoma?

January 20, 2025
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Some preliminary research suggests nicotinamide (a form of niacin) may help with glaucoma, but is this recommended? Find out in our B Vitamins Supplements Review, which includes our Top Picks among B vitamin supplements.

Which foods and supplements are most likely to contain lead?

January 21, 2025
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We have identified 15 types of foods and supplements most likely to be contaminated with concerning amounts of lead, cadmium, arsenic, or mercury, based on our tests. See the list and learn more.

Toxin in Shilajit

January 23, 2025
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A recent study detected the toxin thallium in five out of six shilajit supplements. Get our take on this finding in the Quality Concerns section of our Shilajit Supplements Review, which includes our Top Pick among shilajit supplements.

Dose For Your Liver?

January 23, 2025
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The supplement Dose For Your Liver is promoted for improving liver health and signs of fatty liver disease, but does research support this? Find out in our article about supplements and diets for fatty liver.

Does "Organic" Mean Less Lead?

January 23, 2025
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Are organic foods and supplements less likely to be contaminated with lead and other heavy metals than non-organic products? Find out in our article: Which foods and supplements contain lead?

Shatavari for Strength?

January 23, 2025
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Did taking shatavari (wild asparagus) help increase muscle strength in women doing resistance training in a recent study? Find out in the Shatavari section of our Menopause Supplements Review.

Also see our article: Best Supplements to Prevent Age-Related Muscle Loss