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Extra Virgin Olive Oil

Trying to find the best extra virgin olive oil (EVOO)? We tested 13 popular olive oils chemically as well as for aroma and flavor. Only four met our qualifications for EVOO. Read our reviews to find out which passed or failed and which are our Top Picks. Our Review also show amounts of polyphenols and which products qualify as being potentially heart healthy.

Extra Virgin Olive Oil Review

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Product Review

Tuna, Salmon, Sardines & Herring Review (Canned and Packaged)

Find Products With the Least Mercury and Most Omega-3s

CL Answer

How do I find the best quality olive oil and what are the health benefits?

Health Benefits of olive oil, including heart benefits, anti-inflammatory effects. Plus, how to choose a quality olive oil and cook with olive oil

Health Benefits of Olive Oil -- Pouring Olive Oil Into a Bowl

CL Answer

Should you take olive oil as a supplement?

Although extra virgin olive oil has many possible health benefits, such as reduced risk of heart disease and improved blood sugar control, these and other benefits have been demonstrated when olive oil replaces for saturated fats in the diet, not when taken as a supplement, as we explain.

Olive oil being poured into a spoon being held over a bowl

CL Answer

Does cooking or frying with olive oil make it less healthy?

Learn if cooking with olive oil is healthier, including evidence from clinical studies and tips to minimize the loss of healthful aspects.

Product Review

Avocado Oil Review

Find the Best Avocado Oil for Purity, Freshness and Taste. Some Others May Include Rotten Avocado or Other Oils.

Avocado oil reviewed by ConsumerLab.com

Product Review

Fish Oil, Krill Oil, and Algal Oil Omega-3 (DHA & EPA) Supplements Review

See Our Omega-3 Top Picks and Avoid Rancid Fish Oils.

Fish Oil and Other Marine Oil Supplements Reviewed by ConsumerLab.com

CL Answer

How can I get the equivalent of 20 ml of extra virgin olive oil (4 teaspoons) as oleic acid capsules?

Info on taking extra virgin olive oil as a supplement in pill form. ConsumerLab.com explains.

Olive Oil Capsules Falling Out of Bottle on White Background

CL Answer

Should olive oil be refrigerated?

Learn if you should store olive oil in the refrigerator to keep it fresher longer.

Olive oil being poured into bowl with bowl of olives in the background

Product Review

Astaxanthin Supplements Review

See Which Astaxanthin Products Passed or Failed CL's Tests

Astaxanthin supplements reviewed by ConsumerLab.com

CL Answer

Which oils can help lower my cholesterol and risk of heart attack? How are coconut oil, olive oil, and fish oil for example?

Find out which fats and oils, such as coconut oil and fish oil, lower cholesterol and lower the risk of cardiovascular disease.

Oils and Heart Health

News Release

January 09, 2025

Not All Black Seed Oil Supplements Contain What They Claim, According to ConsumerLab

White Plains, NY, January 9, 2025 —  Black seed oil and extract supplements are promoted for controlling blood pressure, cholesterol, blood sugar, and arthritis pain, and more.

News Release

December 28, 2023

10 Most Popular ConsumerLab Product Reviews of 2023

White Plains, New York, December 28, 2023 —  In 2023, ConsumerLab tested more than two hundred products, adding to its extensive Product Reviews covering 150 categories of supplements, foods, and other health products. Among these, the following 10 were the most popular in 2023:

Clinical Update

3/07/2020

Olive Oil and Heart Disease

Does consuming olive oil instead of butter or margarine reduce the risk of heart disease? Find out what studies are showing, and the amounts of olive oil being used, in the What It Does section of the Olive Oil Review. Also see our Top Picks for olive oil.

Clinical Update

7/07/2023

Olive Oil & Inflammation

Does high-polyphenol extra virgin olive oil decrease inflammation compared to regular olive oil? See what a recent study found in our Extra Virgin Olive Oil Review.

Also see our Top Picks among extra virgin olive oils and learn what impact these oils may have on insulin and blood sugar control.

Clinical Update

11/18/2022

Olive Oil Impact on Cholesterol

Replacing saturated fat in the diet with olive oil may help lower cholesterol levels. But what happens when one adds a large amount of olive oil to the diet? See what a recent study found in the Cardiovascular disease section of our Extra Virgin Olive Oil Review.

Clinical Update

9/07/2021

EVOO vs. Regular Olive Oil

Extra virgin olive oil may be more beneficial than regular olive oil for blood sugar control and satiety, according to a recent study. Get the details in the Insulin Control and Blood Sugar section of our Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.

Clinical Update

4/12/2024

Olive Oil Soap

A CL Member asked if olive oil soaps can help moisturize dry skin. Find out what the evidence suggests, plus, learn how olive oil may affect eczema, in our article about soaps for dry skin. Also see our Top Picks for soap and bodywash for dry skin.

Also, see our Extra Virgin Olive Oil Review, which includes our Top Picks among bottled olive oils.

Clinical Update

4/19/2024

How Olive Oil Lowers Cholesterol

A recent study suggested how substituting olive oil in place of saturated fats can reduce cholesterol. Get the details in the Cardiovascular Disease section of our Extra Virgin Olive Oil Review, which includes our Top Picks for olive oil.

Also see: Which supplements or foods can help lower cholesterol and keep my heart healthy? Are there any to avoid?

Clinical Update

4/23/2024

Organic Olive Oil?

Are pesticides used on olives and should I seek organic olive oil? See the discussion in our Extra Virgin Olive Oil Review, which includes our Top Pick for organic extra virgin olive oil.

Clinical Update

10/16/2020

Olive Oil & Cognition

Does consuming extra olive oil improve cognitive function in people with mild cognitive impairment? Find out what a recent study showed in the What It Does section of our Extra Virgin Olive Oil Review. Also see our Top Picks for olive oil.

Clinical Update

9/15/2020

Olive Oil & Breast Cancer Risk

Is olive oil consumption associated with a lower risk of breast cancer in women? See what a recent analysis found in the What It Does section of the Extra Virgin Olive Oil Review. Also see our Top Picks for olive oil.

CL Answer

OmegaXL Review: Does It Really Work for Joint and Muscle Pain?

Read our in-depth review of OmegaXL to see if it really helps with joint and muscle pain.

Omega XL - Great Health Works

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

Vitamin K Review 2024

CL Answer

Is it true that fish oil may help protect the body against air pollution?

Find out if fish oil and olive oil can help protect the body against air pollution.

Fish Oil and Air Pollution

Clinical Update

8/13/2019

Extra Virgin Olive Oil and Fatty Liver Disease

Can consuming a Mediterranean diet enriched with extra-virgin olive oil decrease the incidence of non-alcoholic fatty liver disease? See what a new study found in the What It Does section of the Extra Virgin Olive Oil Review. Also see our tests and Top Picks among extra virgin olive oils.

Clinical Update

1/25/2020

Best Way to Cook With Olive Oil

Cooking can reduce levels of heart-healthy polyphenols in extra virgin olive oil (EVOO), but a new study showed how to minimize this loss. Get the details in the ConsumerTips section of the Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.

Clinical Update

5/02/2018

Choosing Olive Oil for Cholesterol Benefit

Certain types of olive oil may be more effective at improving cholesterol levels according to a recent analysis. Find out more in the What It Does section of the Extra Virgin Olive Oil Review. (Also see our Top Picks among extra virgin olive oils).

Clinical Update

1/17/2017

Extra Virgin Olive Oil and Bone Fracture Risk

A recent study found that higher consumption of extra virgin olive oil was associated with a 51% reduction in the risk of osteoporosis-related bone fractures. Get the details in the "What It Does" section of the Extra Virgin Olive Oil Review (which includes our tests of products) >>

Clinical Update

9/10/2017

Olive Oil and Prostate Cancer

Another possible benefit of olive oil within a Mediterranean diet is a reduced risk of aggressive prostate cancer, according to a new study. For details about this and other benefits of olive oil, see the updated "What It Does" section of the Extra Virgin Olive Oils Review, which includes our Top Picks among products.

Clinical Update

2/12/2019

Plastic Bottles Okay for Olive Oil?

A recent study compared the effects of storing extra virgin olive oil in plastic versus glass bottles, as well as the effects of light. Find out which bottle and setting fared best in the ConsumerTips section of the Extra Virgin Olive Oils Review. Also see our latest Top Picks for extra virgin olive oil.

Clinical Update

11/20/2018

Best Olive Oil for Heart?

This week, the FDA agreed that oils that are at least 70% oleic acid may claim to reduce the risk of coronary heart disease when substituted for saturated fats. Oleic acid is the dominant fatty acid in olive oil. However, our tests of popular extra virgin olive oils show that only some reach the 70% level. Get the details in the Extra Virgin Olive Oil Review. (Also see our Top Picks among extra virgin olive oils.)

Clinical Update

2/21/2017

Mediterranean Diet with Olive Oil Improves Depression

A recent study found that men and women with major depression who consumed a Mediterranean diet with olive oil had significant improvement in symptoms compared to those who maintained their typical diet. Get the details in the "What It Does" section of the Olive Oil Review (which includes our tests of products) >>

Clinical Update

12/10/2017

Lower Heart Risk With Olive Oil

Using olive oil was associated with a dramatic reduction in the risk of cardiovascular disease in a recent study. But what about using olive oil along with other oils? Get the results and learn more in the "What It Does" section of the Extra Virgin Olive Oils Review. Also see our Top Picks among extra virgin olive oils.

Clinical Update

5/30/2017

Olive Oil Helps in Pre-Diabetes

Adding extra virgin olive oil to a meal decreased the rise in blood sugar and increased insulin levels after the meal, according to a new study in people with pre-diabetes. Similar benefits with olive oil have been shown in people with type 1 and type 2 diabetes. For details, see the "Insulin Control and Blood Sugar" section of the Extra Virgin Olive Oils Review, which includes our tests and comparisons of popular olive oils on the market.

Clinical Update

6/18/2024

Cooking and Frying With Olive Oil

Does cooking or frying with olive oil reduce its potential health benefits? Find out in our article about cooking and frying with olive oil. Also see our Top Picks among extra virgin olive oils.

Clinical Update

7/29/2024

Too Much Olive Oil?

Consuming little extra virgin olive oil (EVOO) may be more heart-healthy than consuming a large amount, according to a recent study. Get the details in the Cardiovascular section of our Extra Virgin Olive Oil Review, which includes our Top Picks among extra virgin olive oils.

Clinical Update

9/03/2024

Should You Refrigerate Olive Oil?

Is storing extra virgin olive oil in the refrigerator better than storing it at room temperature? Find out what a recent study showed in the ConsumerTips section of our Extra Virgin Olive Oil Review, which includes our tests and our Top Picks for EVOO.

Clinical Update

12/09/2024

Olive Oil for Acid Reflux?

Does olive oil help reduce gastroesophageal reflux (GERD)? Find out what research suggests in the Acid reflux section of our Extra Virgin Olive Oil Review, which includes our Top Picks.

Clinical Update

9/14/2021

Best Way to Store Olive Oil

Even if unopened, it is best to store extra virgin olive oil (EVOO) at the right temperature, according to results of a recent study. Get the details on the best way to store EVOO in our Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.

Clinical Update

2/01/2022

Olive Oil Lowers Risk of Death

Regular consumption of olive oil was associated with reduced risk of death from heart disease, cancer, and Alzheimer’s disease in a large, long-term study – but only if replacing certain other foods. Get the details in the What It Does section of our Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.

Clinical Update

1/10/2023

Olive Oil for Memory?

Can extra virgin olive oil improve memory and learning in people with mild cognitive impairment? Find out what a recent study found in the Memory section of our Extra Virgin Olive Oil Review.

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

Clinical Update

10/04/2022

Taking Olive Oil as a Supplement?

A CL member asked if they should take olive oil as a supplement. Find out in our new answer to the question: Should you take olive oil as a supplement?

Clinical Update

3/31/2023

Olive Oil Review Expanded: Many Do Not Make the Grade

We tested three new olive oils based on reader requests, and the results are in! Our new tests included two olive oils that claim to be high in polyphenols, and the results were surprising:

-- One olive oil was rated so poorly by our professional taster it was considered to be "lampante" -- i.e., not fit for human consumption.

-- The other high-polyphenol oil delivered a good amount of polyphenols, rated well for taste, and is now our new Top Pick for a very high-polyphenol olive oil.

We also tested California Olive Ranch Global Blend but were somewhat disappointed.

See the results now for 13 popular olive oils in our updated Extra Virgin Olive Oil Review.

Clinical Update

3/19/2024

Olive Oil & Fatty Liver

Olive oil seems to offer benefits to people with fatty liver disease. See what a recent study showed in our Extra Virgin Olive Oil Review, which includes our Top Picks among olive oils.

Also see: Do any supplements help with fatty liver disease? Are some diets more beneficial than others?

Product Review

Vitamin D Supplements Review (Including Calcium, Magnesium, Vitamin K, and Boron)

Find the Best Vitamin D Supplement and Avoid Problems

Vitamin D Review 2024

Product Review

Lycopene Supplements Review

Find the Best Lycopene Supplements. CL Tests Reveal That Not All Lycopene Supplements Contain What They Claim.

Lycopene Supplements Reviewed by ConsumerLab.com

CL Answer

5 Tips for Finding a Soap or Body Wash That Won't Irritate Skin

Get 5 tips for finding soap or body wash that won't cause skin irritation. See which soaps we rate best, ingredients to avoid, and phrases on labels that can mislead.

Different bars of soap on a marble countertop

Recalls & Warnings

August 08, 2018

Extra Virgin Olive Oil That Isn't

Pompeian OlivExtra Original may contain less extra virgin olive oil than listed on the label, according to sources that spoke with Spain's digital newspaper El Español and as reported by The Olive Oil Times.

CL Answer

7 Tips to Avoid Getting a Pill Stuck in Your Throat

Some pills can be difficult to swallow and can even become lodged in the throat or cause damage to the esophagus. Learn seven practical tips to help avoid getting pills stuck in the throat.

Pill Getting Stuck in Throat

Product Review

Prostate Supplements Review (Saw Palmetto and Beta-Sitosterol)

Find the Best Prostate Supplement for Symptoms of BPH. See Which Prostate Supplement Passed or Failed CL's Tests of Quality.

CL Answer

Which supplements can help to lower blood pressure?

Supplements to lower blood pressure, including CoQ10, vitamin C, fish oil, and olive oil, are all explored to find out what works.

Supplements that can lower, or raise blood pressure -- blood pressure cuff and bottle of pills

CL Answer

Do any supplements help with fatty liver disease? Are some diets more beneficial than others?

Find out if supplements such as vitamin E, fish oil, milk thistle, curcumin, choline, probiotics, vitamin D, reishi mushroom, or extra virgin olive oil are beneficial for fatty liver disease and learn which diet (Mediterranean, ketogenic, DASH, or fasting diets) seems to have greatest benefit.

Overweight man holding his right side near his liver

Product Review

CLA (Conjugated Linoleic Acid) Supplements Review (for Slimming)

Choose the Best CLA Supplement. Not All CLA Supplements Contain What You Expect.

CLA Supplements Reviewed by ConsumerLab.com

Clinical Update

4/24/2021

Olive Oil & Alzheimer's?

Can regular consumption of extra virgin olive oil improve cognition and reduce blood levels of markers associated with Alzheimer's disease? See what a recent study found in the What It Does section of our Extra Virgin Olive Oils Review. Also see our Top Picks among olive oils.

Clinical Update

6/15/2018

Mediterranean Diet Study Retracted

A landmark study about the benefits of the Mediterranean Diet was retracted and republished this week. Does this change what we know about the benefits of extra virgin olive oil? Find out in the Cardiovascular Disease section of the Extra Virgin Olive Oil Review. (Also see our Top Picks among extra virgin olive oils.)

Clinical Update

7/23/2019

Extra Virgin Olive Oil and Diabetes

Several studies have looked at the effects of consuming extra virgin olive oil on improving blood sugar control. The most recent study looked at whether it could delay the need for glucose-lowering medication in people with type 2 diabetes. Get the results in the What It Does section of the Extra Virgin Olive Oils Review. Also see our Top Picks among products.

Clinical Update

4/23/2017

Olive Oil Lowers Diabetes Risk

Consuming a certain amount of olive oil daily reduces the risk of developing type 2 diabetes by 13%, according to a new study. Consuming more than this amount did not reduce the risk further. Get the details, and see our tests of popular oils, in the "What It Does" section of the Extra Virgin Olive Oils Review >>

Clinical Update

9/02/2017

Extra Virgin Olive Oil Aids Fat Loss

A study among overweight women found that substituting extra virgin olive oil for another plant oil led to greater losses of body fat during dieting. See the details in the "What It Does" section of the Extra Virgin Olive Oils Review -- which includes our Top Picks among extra virgin olive oils.

Clinical Update

1/20/2017

Reason for Olive Oil Defects?

We recently noticed that all three of the extra virgin olive oils which failed to be Approved in our recent review share something in common. For details, see the "What CL Found" section of the Extra Virgin Olive Oil Review (which includes our tests of products) >>

Clinical Update

1/27/2024

Pesticides in Olive Oil?

How big a risk is pesticide contamination in extra virgin olive oils? See what recent study found in the Quality Concerns section of our Extra Virgin Olive Review. Also see our Top Picks for olive oil.

Clinical Update

1/30/2024

Top Pick Extra Virgin Olive Oil Renamed

In case you've been trying to find our Top Pick EVOO for "high polyphenols," we learned that the name has changed. For details, see the Top Picks section of our Extra Virgin Olive Oil Review.

Clinical Update

8/21/2021

Mediterranean vs. Low-Fat Diet for Arteries

A long-term study in people with coronary heart disease compared the effects of a Mediterranean diet rich in olive oil with a low-fat diet. Find out which diet decreased atherosclerosis (plaque build-up in arteries) in the Cardiovascular Disease section of our Extra Virgin Olive Oil Review. Also see our Top Picks among extra virgin olive oils.

Clinical Update

8/01/2024

Cancer-Causing PAH in Olive Oil?

A limit on PAH compounds in oils was recently set in Europe. Should you be concerned about PAH in olive oils? Get the facts in the Concerns and Cautions section of our Extra Virgin Olive Oil (EVOO) Review, which includes our Top Picks for EVOO.

Clinical Update

6/14/2024

Olive Oil Ratings

How do ConsumerLab’s ratings of extra virgin olive oils compare to those by Consumer Reports? Find out in the What CL Found section of our Extra Virgin Olive Oil Review, which includes our Top Picks among extra virgin olive oils.

Clinical Update

6/21/2024

Olive Oil "Not Fit for Consumption"

Some extra virgin olive oils were considered "lampante" (not fit for human consumption) by our taste tester. A CL member asked if these pose a health risk. No, they don't, but for more about what it means, see the Quality Concerns section of our Extra Virgin Olive Oil Review, which includes defects found and our Top Picks.

CL Answer

10 Supplements That May Boost Testosterone (And 13 That May Not)

Many supplements promise to increase testestorone, boost libido, and increase muscle size, but, as ConsumerLab explains, the actual effectiveness of supplements is limited, and some supplements may actually reduce testosterone levels.

Chalkboard sign that says low testosterone sitting on a table in front of a book and supplements

CL Answer

What are the health benefits of black cumin seed (black seed) oil?

Find out if black seed oil has health benefits, such as lowering blood pressure or cholesterol, asthma, weight loss, and others. Dosage, forms, including black seed oil and black seed powder, safety information, using black seed oil in foods and more. ConsumerLab.com's answer explains.

Black seed oil benefits -- bowl of black cumin seeds and bottle of oil

CL Answer

Is canola oil good or bad for you? I heard it can be toxic.

Find out if canola oil is bad for you or good for you, and whether it helps heart health. Clinical evidence and how it compares to other oils.

Is canola oil good or bad? -- bottle of canola oil

CL Answer

Are there vitamins or supplements that can reduce my risk of breast cancer? Do any increase cancer risk?

Find out if certain vitamins, supplements and foods such as fish oil, olive oil, vitamin C and others, can help reduce the risk of breast cancer. ConsumerLab.com's answer explains.

Supplements & Breast Cancer Risk -- doctor holding pink breast cancer awareness ribbon

CL Answer

Which supplements can help lower my triglycerides?

Find out whether fish oil supplements, or plant-based oil supplements, such as flaxseed oil and echium oil are best for lowering triglyceride levels. ConsumerLab.com's answer explains.

Supplements to Lower Triglyceride Levels -- fish oil capsules and stethoscope

Product Review

Coconut Oil and Medium Chain Triglycerides (MCT) Oil Review — Semi-Solid and Liquid Oils & Supplements

Find the Best Coconut Oil and MCT Oil. See How These Oils Compare on Medium Chain Triglycerides (MCTs), Quality, and Value.

Coconut and MCT Oils Reviewed by ConsumerLab.com

Product Review

CBD Oils, Softgels, Gummies, Creams & Salves Review

See How Much CBD and THC We Found in Products.

CL Answer

Which supplements and foods can help lower or control blood sugar?

Find out which supplements can help lower or control blood sugar. Supplements including turmeric/curcumin, fiber, cinnamon, and ginseng are believed to help lower blood sugar.

Blood Sugar Control -- blood test and blood sugar chart

CL Answer

What are omega-7 fatty acids? Do I need to take these if I already take fish oil?

Learn what omega-7 fatty acids are and if you need to also take them while taking fish oil. See the varying amounts of omega-7 fatty acids in fish and krill oil supplements.

Fish Oil

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.

News Release

October 24, 2023

Best Fish Oil and Omega-3 Supplements? ConsumerLab Tests Reveal Some Are Rancid

White Plains, New York, October 24, 2023 —  Recent ConsumerLab tests of popular fish, krill, and algal oil supplements revealed several products to be rancid. Fish and marine oils that are rancid, or “oxidized,” can have an extremely unpleasant odor and taste, and may be less safe and effective.

Product Review

Glutathione Supplements Review

Learn How Glutathione Products Differ, Which Failed, and Our Top Picks

Glutathione Review 2024

News Release

August 23, 2023

ConsumerLab Tests Find More CBD, Less THC in CBD Oils, Gummies, and Topicals

White Plains, New York, August 23, 2023 —  Recent ConsumerLab tests of popular CBD (cannabidiol) products on the market revealed that, overall, products contain more CBD, and less THC (tetrahydrocannabinol, a psychoactive compound) than in previous years.

CL Answer

Which supplements help for osteoarthritis of the hip?

Supplements for hip pain and osteoarthritis, such as SAMe, ginger and collagen, may help or reduce pain.

Woman Holding Hip from Pain

Product Review

Seaweed Snacks and Foods Review

Tests Reveal Seaweed Snack Risks

Product Review

Berberine and Goldenseal Supplements Review

Tests Reveal the Best and Worst Berberine and Goldenseal Products

Product Review

Olive Leaf Extract Supplements Review

Learn What Olive Leaf Does and the Best Brands

CL Answer

What is acrylamide? Is it true that coffee and cocoa contain this toxin?

Find out what acrylamide is, how much is found in coffee and cocoa, and how you can minimize your intake of acrylamide.

Acrylamide in Coffee, French Fries & Cookies

CL Answer

Is it true that there are bits of plastic in drinking water, specialty salts, or other foods and beverages? How concerned should I be?

Microplastics are tiny pieces of plastic that can end up foods and beverages. Learn about microplastics found in drinking water and specialty salts. ConsumerLab.com's answer explains.

Microplastics in water, plastic bottle of water pouring water into glass

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.

Supplements for Osteoarthritis and Rheumatoid Arthritis -- Women With Arthritic Hands

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.

Doctor discussing osteoporosis with older female patient

Product Review

Vision Supplements Review (with Lutein, Zeaxanthin & AREDS2 Formulas)

Find the Best Vision Supplement Based Our Tests

CL Answer

Is it true that some vitamins or supplements can cause cancer?

Learn more about the effects of certain vitamins and supplements on cancer, including beta-carotene, vitamins E and B9, and multivitamins.

Woman holding vitamins in hand

CL Answer

What is the best way to take curcumin? Is it better to take it all at once or in divided doses?

Find out the best way to take curcumin and turmeric supplements to increase absorption and bioavailability, plus the best way to cook with turmeric spice. ConsumerLab.com's answer explains.

Product Review

CoQ10 and Ubiquinol Supplements Review

Find the Best CoQ10 and Ubiquinol Supplements and Learn How They Differ

CoQ10 2024

Clinical Update

1/20/2021

Avocado Oil Quality Problems Confirmed

Recent tests confirmed the finding that many avocado oils in the U.S. market contain other, cheaper oils, as reported last year. See the details, by brand, and expert tips for consumers in our answer to the question: What are the health benefits of avocado oil? Is it healthier than olive oil? Which avocado oils are best?

Clinical Update

3/17/2023

Lycopene and Lutein Absorption

Carotenoids, such as lycopene and lutein, are best absorbed when taken with a meal with oils -- but the type of oil matters, according to a recent study that compared the effects of olive oil and coconut oil. See the details in the What to Consider When Using section of our Lycopene Supplements Review, which includes our Top Pick among lycopene supplements.

Also see our Top Picks among lutein and vision supplements and our answer to the question: Which supplements should be taken with food?

Clinical Update

5/17/2024

Phthalates Found in Extra Virgin Olive Oil

A recent study detected phthalates (plasticizer chemicals) in popular extra virgin olive oils. Get the details by brand, and find out if you should be concerned, in the Quality Concerns section of our Extra Virgin Olive Oils (EVOO) Review, which includes our Top Picks for EVOO.

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.)

Stroke Spelled on Wooden Blocks Against Blue Background

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.

Supplements and Colorectal Cancer Risk -- colon cancer diagnosis form and supplements

Recalls & Warnings

November 28, 2017

Seven Arrested for Selling Fake Olive Oil in Greece

On November 26, 2017, Greek police arrested and charged seven individuals for fraudulently selling large quantities of sunflower oil as olive oil, as reported in the National Post.

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.

Which supplements can cause constipation? -- Woman with gastrointestinal pain

CL Answer

Can I take CoQ10 at the same time as my statin, or should I take them separately?

Taking CoQ10 and statins (such as lovastatin and simvastatin)? Find out if you can take them at the same time or if they should be taken separately. ConsumerLab.com's answer explains.

Elderly Individual Taking Two Supplements from Blister Packs

CL Answer

Do any supplements help prevent or improve cataracts?

Find out which supplements may help with cataracts, including selenium and vitamins A, B1, B3, C, and E.

Doctor Shining Light for Patient Eye Exam

CL Answer

Which supplements, foods or diet and lifestyle changes help relieve acid reflux (heartburn), and which worsen it?

Find out which supplements and foods can help relieve acid reflux, and which can make it worse.

Supplements Making Acid Reflux Worse -- Man with acid reflux pain

Product Review

Inactive Ingredients / Excipients in Supplements

Find Out Why Coloring Agents, Sweeteners, Fillers & Other Inactive Ingredients Are In Your Supplements and If They're Safe.

Clinical Update

6/18/2024

Phthalates in Coconut Oils

A recent study detected phthalates (plasticizer chemicals) in popular coconut oils, most of which were labeled as organic. Get the details by brand, and find out if you should be concerned, in the Quality Concerns section of our Coconut Oil and MCT Oil Review, which includes our Top Picks among coconut and MCT oils.

Also see how this compares to amounts of phthalates recently found in extra virgin olive oils.

CL Answer

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

Find out which supplements help improve memory, brain function and cognition, including fish oil, some B vitamins, cocoa, and curcumin. ConsumerLab's answer explains the evidence for supplements promoted to help with brain function and cognition.

Supplements for Memory -- doctor holding a model of a brain and fish oil capsule

CL Answer

Is it best to take probiotic supplements with or without food? It seems like everyone has a different recommendation.

When is the best time to take probiotic supplements? Learn if you should take your probiotic with or without food.

Probiotics

CL Answer

Is it true that eating Brazil nuts can help with weight loss? Are there other health benefits or risks of Brazil nuts

Learn more about vitamin E intake from nuts, including Brazil nuts, hazelnuts, and almonds.

Product Review

Black Seed Oil Review

Find Out Which Black Seed Oil Supplements Passed or Failed Our Tests. See Our Top Picks.

Black Cumin Seed Oil Review 2025

Product Review

Vitamin A Supplements Review, Including Beta-Carotene and Cod Liver Oil

Find the Best Vitamin A Supplement. Best Quality Vitamin A Supplements Identified, Including Cod Liver Oil.

Vitamin A Supplements (Including Cod Liver Oil) Reviewed by ConsumerLab.com

Product Review

Black Currant, Borage, Evening Primrose, Flax and Hemp Oil Review

Choose the Best Flaxseed and Other Oils Based on Our Tests.

Omega 3 and 6 Seed Oil Review 2025

CL Answer

Do any supplements help with COVID-19? Do supplements like vitamin D, zinc, vitamin C, or herbals work?

Find out if natural remedies & supplements for coronavirus such as zinc, vitamin C, garlic, or elderberry help to prevent or treat COVID-19.

Supplements for Coronavirus (COVID-19)? -- mask and pills

CL Answer

Conolidine: Evidence for Pain Relief, Safety, and CONOCB2™ Products Explained

Find out if conolidine, the main ingredient in CONOCB2 Blend, offers natural pain relief without the side effects of opioids. Also learn about the top conolidine products available today.

Three commercial products that contain conolidine

News Release

April 10, 2023

Best and Worst Olive Oils According to ConsumerLab Tests

White Plains, New York, April 10, 2023 — Extra virgin olive oil can be a heart-healthy alternative to saturated fats in the diet, providing antioxidant polyphenols and plenty of oleic acid, a “healthy” monounsaturated fat.

News Release

September 01, 2022

Big Differences in Strength of Olive Leaf Supplements in ConsumerLab Tests

  White Plains, New York, September 1, 2022 — Unlike olive fruit and olive oil, olive leaf contains significant concentrations of oleuropein, a potentially beneficial compound. Olive leaf extract supplements are often promoted for lowering blood pressure and blood sugar.

Product Review

Lavender and Tea Tree Essential Oils Review

Oils Tested for Authenticity and Purity

CL Answer

Is it true that low-carb or Mediterranean diets help for gastroesophageal reflux disease (GERD)?

Find out if a low-carb diet, such as the Mediterranean diet, or lifestyle changes help with gastroesophageal reflux disease (GERD).

Low-carb & Mediterranean Diets for GERD? -- Table with Mediterranean foods such as fish, olive oil, walnuts, vegetables

CL Answer

What is shilajit? Does it have any proven health benefits, and is heavy metal contamination a concern?

Shilajit information, including its potential health benefits, safety, proper doses and impact on male health.

Shilajit Health Benefits -- blister pack of shilajit tablets

CL Answer

Does Neuriva improve memory or cognitive function?

Find out about Neuriva, its ingredients, and the evidence for or against it for memory and cognitive function.

Bottles containing capsules of Neuriva Original and Neuriva Plus

CL Answer

Do any supplements naturally suppress appetite and help with weight loss?

Learn which natural ingredients can suppress appetite and find if these natural appetite suppressants help with weight loss.

Container of natural appetite suppressant supplement with measuring tape and scale in background

CL Answer

I read that turmeric may be a GI irritant. I have GI problems and wonder if I should avoid turmeric and curcumin?

Find out if turmeric/curcumin supplements can cause gastrointestinal irritability.

Is turmeric a stomach irritant? -- Turmeric Supplement

CL Answer

Can any vitamins or minerals help prevent or reduce canker sores or cold sores?

Find out which, if any, supplements, including iron, L-lysine, monolaurin, olive leaf extract, vitamin B-12, and zinc, may be beneficial for canker sores or cold sores.

Lip of woman with a cold sore

CL Answer

Does tea tree oil work for getting rid of athlete's foot?

Learn more about tea tree oil and its effects on foot fungus (known as athlete’s foot, tinea pedis, or “ringworm” due to the lesion that can occur) and how it can be as effective as some, but not all, over-the-counter antifungal treatments. ConsumerLab explains.

Tea Tree Oil for Athlete's Foot? -- Bottle of Tea Tree Oil

Product Review

Garlic Supplements Review

Find the Best Garlic Supplements. CL Tests Reveal Big Differences in Garlic Strength -- Some Have Little to No Garlic!.

Garlic Supplements Reviewed by ConsumerLab.com

News Release

August 10, 2022

Best Lavender and Tea Tree Essential Oils Identified by ConsumerLab

  White Plains, New York, August 10, 2022 — Lavender essential oil as aromatherapy may reduce anxiety and tea tree essential oil is used topically for various skin ailments.

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.

Migraine

CL Answer

How does turmeric spice compare to curcumin (turmeric extract) in supplements? I sprinkle it on my foods and wonder if that's equivalent to taking a supplement.

What is the difference between turmeric spices used in the kitchen and turmeric supplements? Is sprinkling turmeric on my food equivalent to taking a turmeric supplement? ConsumerLab's answer explores this question.

Turmeric Spice vs. Turmeric Supplements

CL Answer

Is topical menthol, such as Biofreeze, safe and effective for pain relief?

Menthol is commonly used in topical creams and gels for pain relief. Find out if it works and if it's safe.

Man applying menthol cream

CL Answer

An online supplement seller suggests I pay $10 extra to ship my order of bottled fish oil with freezer packs using priority mail. Is this necessary?

Find out if fish oil supplements need to be shipped with freezer packs to be kept fresh, plus other information about shipping and storing supplements. ConsumerLab.com's answer explains.

Box of Supplements

CL Answer

I drink organic milk with added DHA Omega-3, but it is expensive. Is it worth paying extra for the added DHA?

Find out if drinking organic milk with added DHA omega-3, such as Horizon Organic Milk, is worth paying more.

Organic Milk Cartons

Clinical Update

8/08/2023

Microplastic in Oils

Tests of several popular U.S. brands of oils (olive, sunflower, etc.) sold in plastic bottles found all to contain microplastic particles. See what else the researchers found in our article about microplastics in food and beverages.

CL Answer

With herbal supplements, what is the difference between root powder and root extract? Does it matter?

Learn more about the different forms of herbal supplements, including aloe, boswellia, ginkgo, green tea, and milk thistle.

Herbal Supplements

News Release

April 17, 2021

ConsumerLab Identifies Best and Worst Avocado Oils Based on Testing

White Plains, New York, April 17, 2021 — Avocado oil has become increasing popular, but concern about the quality of products was raised in 2020 by a study from researchers at the University of California, Davis that found that as much as 82% of avocado oil samples bought locally or online in ...

CL Answer

What are the health benefits of coconut oil and medium chain triglycerides, such as those used in Bulletproof Coffee?

Learn the health benefits of coconut oil and medium chain triglycerides (MCTs), including evidence from Bulletproof Coffee, clinical studies on obesity, skin, and Alzheimer's disease.

Coconut Oil & MCTs -- Coconuts and coconut oil with coffee cup

CL Answer

I've tried a number of fish oil supplements, all of which make me nauseous. What is the best non-fish alternative? I am primarily interested in getting EPA.

Learn how to reduce fish oil side effects such as nausea and upset stomach.

Disgusted Woman Holding Fish Oil

Clinical Update

12/03/2024

Olive Leaf Extract for Menopause?

Does supplementing with olive leaf extract improve hot flashes, bone mineral density, cholesterol levels, or body composition among postmenopausal women? See what a recent study found in the Postmenopausal symptoms section of our Olive Leaf Extract Review, which includes our Top Picks among olive leaf extracts.

Clinical Update

3/11/2022

Olive Leaf Extract for Herpes?

Does olive leaf extract taken orally or applied topically help heal cold sores or genital herpes? Find out in our article about the Health Benefits of Olive Leaf Extract.

Clinical Update

4/05/2022

Acrylamide in Olives

Some olives contain much higher amounts of acrylamide (a carcinogen) than others. Find out how California, Greek, and Spanish styles of olive differ in our updated answer to the question: What Is Acrylamide?

News Release

September 18, 2020

Analysis of CBD Products Shows Price Drop and Lower Levels of THC

White Plains, New York, September 18, 2020 — The recent analysis by ConsumerLab of CBD and hemp extract products revealed a 70% drop in the lowest cost to get CBD since 2018 as well as fewer products containing detectable amounts of THC, a psychoactive compound in hemp.

News Release

July 10, 2020

Best and Worst Tuna, Salmon and Sardines? ConsumerLab Tests Reveal Amounts of Omega-3s and Toxic Heavy Metals in Canned and Packaged Fish

White Plains, New York, July 10, 2020 — Canned and packaged tuna, salmon and sardines can be an excellent source of omega-3 fatty acids, but some may also be contaminated with toxic heavy metals such as mercury and arsenic.

CL Answer

I do moderate exercise for about an hour a few times a week. Which supplements might help me, and which should I consider avoiding?

Info on what supplements are best for work out & exercise regimens, including electrolytes, protein, creatine, and BCAAs.

Supplements for Moderate Exercise

CL Answer

What is the best sunscreen based on safety and efficacy?

We’ve boiled down the latest research about mineral and chemical sunscreens, including product tests, to help you choose the best sunscreen (which will depend on whether you expect to be in or out of the water). We also list popular sunscreens that have, or have not, been found to contain cancer-causing compounds (benzene and benzophenone).

Carcinogens in Sunscreens - Bottle of sunscreen with a question mark

CL Answer

What is Marine-D3 with Seanol-P, and does it live up to anti-aging claims?

Learn about the evidence for Marine-D3, a supplement from Marine Essentials that contains Seanol, including evidence from clinical studies on aging.

CL Answer

Can supplements, natural eye drops, or lifestyle modifications improve symptoms of dry eye?

Can supplements such as fish oil, flaxseed oil or curcumin (from turmeric) help treat dry eyes? Find out, including formulas and doses that have shown benefit. Also, learn if drinking more water or using eye drops containing castor oil, N-acetylcarnosine or aloe can help with dry eye.

Older man with dry eye rubbing his eyes while holding his glasses

Clinical Update

9/06/2023

Supplements for Cold Sores

Do lysine, monolaurin, or olive leaf extract help prevent or treat cold sores? Find out in our updated article about supplements for canker sores and cold sores.

News Release

March 07, 2019

Best Coconut and MCT Oils Identified by ConsumerLab

White Plains, New York, March 7, 2019 — Coconut oil is often promoted as a "healthy fat" and an alternative source of energy to help with weight loss and in conditions such as Alzheimer's disease because it contains medium chain triglycerides (MCTs).

News Release

November 19, 2018

Tests Reveal Best Fish Oil Supplements and How They Compare to Prescription Fish Oil

White Plains, New York, November 19, 2018 — Fish and marine oil supplements containing the omega-3 fatty acids EPA and DHA offer a range of potential benefits for improving mental health, reducing inflammation, and even cancer prevention.

CL Answer

Can any supplements be used to reduce inflammation in people sensitive to NSAIDs such as ibuprofen, high-dose aspirin, or naproxen?

Find out if supplements such as turmeric, fish oil, MSM (methylsulfonylmethane), SAMe (S-adenosyl-methionine), boswellia, ginger, white willow bark or arnica may, or may not, be helpful to people sensitive to NSAIDs.

Woman with NSAID-hypersensitivity looking at two supplement containers and wondering if they are safe to take

CL Answer

Are supplements which claim increased absorption or improved bioavailability telling the truth? Is it worth paying more for these? Are there concerns?

Learn more about bioavailability enhancers, including emulsifiers and enzyme inhibitors.

Enhancers in Supplements

CL Answer

How are you staying healthy during the coronavirus pandemic?

Tips for staying healthy during the coronavirus (COVID-19) pandemic. Tips from ConsumerLab members for maintaining physical health, mental health and social well-being during COVID-19.

Staying Healthy During the Coronavirus Pandemic -- Couple at Home, Looking Out the Window

CL Answer

Which supplements can help me sleep and which cause insomnia?

Find out which supplements may improve sleep, including melatonin, L-tryptophan, and magnesium, and which may make sleeping more difficult.

Supplements for Sleep -- woman awake in bed

CL Answer

Do any supplements help prevent or treat a cold?

Are there supplements that can help prevent or treat cold symptoms? Learn more about zinc, probiotics, vitamin C and more.

Supplements for Colds: Zinc, Echinacea & More -- Couple with cold, sitting on couch blowing their noses

CL Answer

I'm a vegan but my doctor wants me to take fish oil with EPA and DHA. Is there something I can take that would be as good as fish oil capsules but would satisfy the needs of a vegan?

Find out which vegan-friendly fatty acid supplements contain EPA and DHA and how they compare to fish oil.

Vegan Friendly EPA and DHA Supplements -- Fish Oil Pills

CL Answer

Is it okay to freeze fish oil to keep it from becoming rancid?

Find out if freezing fish oil & fish oil pills is okay to keep them from spoiling.

Person with Fish Oil Supplement and Water on Kitchen Counter

CL Answer

What is the difference between fish oil and krill oil? Is one better than the other?

Learn which is better for you and compare krill oil vs. fish oil, including evidence from clinical studies, EPA and DHA content, price, and side effects.

CL Answer

Is it better to take fish oil, flaxseed oil -- or both?

Fish oil and flaxseed oil -- how they are different, what they are used for, if and how they can help with arthritis, depression, lowering cholesterol & more.

Flaxseed Oil vs Fish Oil -- Omega-3 Supplements

News Release

September 12, 2018

Little Omega-3 and High Mercury Found In Some Canned Tuna -- Better Choices Selected for Tuna and Salmon

White Plains, New York, September 12, 2018 — Some popular canned tuna contain much lower amounts of omega-3 fatty acids than recommended for cardiovascular benefits while being high in mercury and/or arsenic, according to tests by ConsumerLab.com.

CL Answer

What is fermented cod liver oil, such as Blue Ice? Is it better than regular cod liver oil?

Fermented cod liver oil information including if Rosita & Blue Ice (Green Pastures) is as good a source of vitamins and DHA as regular.

Fermented Oil On Spoon and in Syringe

CL Answer

Is fish oil safe? Is it contaminated with mercury and PCBs?

Fish oil safety, including information on contamination with mercury and PCBs.

Is Fish Oil Safe? -- fish oil capsules up close

CL Answer

Is it safe to consume fish oil as a long-term food supplement?

Learn more about fish oil supplement safety including long-term use, side effects, and more.

Fish Oil

CL Answer

Is it true that fish oil supplements may contain soy? I'm allergic!

Learn about soy content in fish oil and cod liver oil, including safety for those with soy allergies.

Do Fish Oil Supplements Contain Soy? -- bottle of fish oil and fish oil capsules

CL Answer

Are there any red flags to look for on the label when choosing a fish oil supplement?

Learn more about safety concerns when choosing a fish oil supplement.

Man Holding Fish Oil Capsule and Water

CL Answer

Is it true that fish oil is better absorbed when taken with a fatty meal?

Find out if it's better to take fish oil supplements with a meal or on an empty stomach to maximize their absorption.

Best Way to Take Fish Oil -- fish oil capsules on plate with fork and knife

CL Answer

Can taking too much fish oil be dangerous?

Find out if too much fish oil can be dangerous, and if taking too much fish oil can cause effects such as suppressing the immune system, thinning the blood (increasing the risk of bleeding), increasing levels of LDL cholesterol and liver enzymes or increasing the frequency in episodes atrial fibrillation. ConsumerLab.com's answer explains.

Taking Too Much Fish Oil -- bottle of fish oil and fish oil capsules

CL Answer

How can I tell if my fish oil supplement is rancid (oxidized) or spoiled? And if it is spoiled, is it still safe to take?

Find out how to tell if your fish oil supplement is rancid (oxidized) or spoiled and how to store fish supplements to keep them fresh. ConsumerLab.com's answer explains.

Fish Oil

CL Answer

Can castor oil eye drops improve or dissolve cataracts? Is castor oil or tea tree oil helpful for other eye conditions such as blepharitis or dry eye?

Can castor oil eye drops help cataracts or for other conditions such as blepharitis? Find out if castor oil eye drops are safe to use, and if they help for other conditions. ConsumerLab.com's answer explains.

Castor Oil for Cataracts? -- bottle of castor oil and dropper

CL Answer

What is the difference between fish oil and cod liver oil? Is one better than the other?

Find out how regular fish oil and cod liver oil differ including amounts of omega-3s EPA and DHA, vitamin A and vitamin D, which is best to suit your needs. ConsumerLab.com's answer explains.

Fish Oil vs. Cod Liver Oil -- bottle of cod liver oil pouring into spoon

CL Answer

Which dark chocolate bar has the most flavanols with the least calories?

Find out which dark chocolates are lowest in calories and contain the most flavanols, according to our lab tests.

Dark Chocolate Bar

CL Answer

How do fish oil supplements compare to EPA prescription fish oil like Vascepa?

How do regular fish oil supplements compare to prescription fish oil such as Vascepa and Lovaza. Info on amounts of EPA and DHA, dose, cost and absorption. ConsumerLab.com's answer explains.

Fish oil supplements vs. prescription fish oil - fish oil capsules

CL Answer

Is it okay to take vitamin D3 and fish oil together?

Find out if taking vitamin D and fish oil is okay, how it effects absorption, and the best way to take vitamin D to improve absorption. ConsumerLab.com's answer explains.

hand holding vitamin D and fish oil capsules

CL Answer

Can hemp oil or CBD (cannabidiol) supplements cause me to fail a marijuana drug test?

Find out if you can fail a drug test dues to hemp oil or CBD (cannabidiol) supplements. Plus info on how much THC is in hemp oil and CBD products. ConsumerLab.com's answer explains.

CBD Oil Causes a Failed Drug Test? -- urine sample for drug test

CL Answer

I am very concerned about getting too much vitamin A. Is there danger in getting too much vitamin A if I take fish oil, which I've heard contains a lot of vitamin A, in addition to my multivitamin?

Find out if taking vitamin A along with fish oil can lead to an excess of vitamin A and how to avoid vitamin A overdose.

Fish Oil Supplements Poured from Bottle into Hand

CL Answer

To lower my cholesterol, I am taking a phytosterol supplement. Will taking other supplements, like red yeast rice or fish oil, help lower my cholesterol even further?

Learn more about combining phytosterols and other cholesterol-lowering supplements like red yeast rice or fish oil.

Cholesterol

CL Answer

What are phytoceramides? Do phytoceramide supplements really work to improve aging skin?

Phytoceramide supplement information, including what they are, what they claim to do, and if they have anti-aging effects.

Phytoceramides for Aging Skin? -- woman looking at skin up close in mirror

CL Answer

Are there any serious side effects with Lovaza or Epanova (prescription fish oil)? If so, would these also apply to generic versions of these drugs and to fish oil supplements?

Understand the side effects of prescription fish oil like Lovaza and Epanova, and find out if the generic fish oils are effective and safe.

Fish Oil and Other Marine Oil Supplements Reviewed by ConsumerLab.com

CL Answer

I heard that some types of fish oil are esterified and can dissolve plastic foam (polystyrene or Styrofoam). Is this right and, if so, should I be concerned?

Can some types of esterified fish oil dissolve plastic foam (polystyrene or Styrofoam), such as cups?

Fish Oil Poured Onto Spoon From Above

CL Answer

Is it true that taking a statin drug negates the benefits of taking fish oil supplements?

Information on the interaction between statins and fish oils and omega-3 fatty acids.

Taking Statins & Fish Oil -- fish oil capsules and stethoscope

CL Answer

Lovaza, a prescription omega-3 fish oil, is very expensive. Can I get the same omega-3 oils from a supplement that costs less?

Lovaza fish oil (prescription) vs. over the counter fish oil supplements. Understand the differences in cost and benefits before you buy.

The Difference Between Prescription Lovaza and Over the Counter Fish Oil - Omega-3 Supplements

CL Answer

The suggested daily serving for my fish oil supplement, three 1,000 mg softgels, seems like a lot. Do I really need to take this much?

Information on the proper fish oil dosage per day. See the best dosage for different uses, such as lowering triglyceride levels or improving mood, plus information on overdose.

Fish Oil

Recalls & Warnings

February 13, 2014

Maker of Cholesterol and Workout Supplements Warned For Manufacturing Violations, Drug Claims and Unapproved Ingredient

On January 31, 2014, the FDA issued a warning letter to Exclusive Supplements Inc.

Recalls & Warnings

April 22, 2024

Primal Kitchen Avocado Oil Recalled Due to Potential for Glass Bottle to Break

On April 19, 2024, Primal Kitchen issued a recall of approximately 2,060 cases of Primal Kitchen Avocado Oil (750 mL) because the glass bottle may be prone to breaking.

Clinical Update

9/25/2018

Extra Protein for Extra Muscle?

Extra protein can boost the increases in muscle strength and size that occur with strength training. But does extra protein help people already consuming adequate protein from their diets? See what a new study found in the What It Does section of the Protein Supplements Review. (Also see our Top Picks among protein powders and shakes.)

Clinical Update

7/06/2022

Walnuts for Omega-3s?

Walnuts are often touted as a good source of the omega-3 fatty acid ALA, but can eating walnuts regularly increase blood levels of DHA and EPA (the omega-3s in fish oil)? Find out in the What It Is section of our Black Currant Oil, Borage Oil, Evening Primrose Oil, Flaxseed Oil, and Hemp Oil Supplements Review.

Clinical Update

1/27/2025

Tea Tree Oil for Cold Sores?

Tea tree oil has been traditionally used for healing cold sores, but does it work? Find out what research suggests in the Tea tree oil section of our Essential Oils Review, which includes our Top Pick for tea tree oil as well as for lavender oil.

Also see: Can any vitamins or minerals help prevent or reduce canker sores or cold sores?

Clinical Update

6/20/2020

Most Avocado Oils Fail Tests of Quality and Purity

The vast majority of avocado oils purchased in the U.S. were found to be stale or contain other oils, such as soybean oil, in a study by academic researchers. Get the details, along with the names of oils that passed testing, in the Quality Concerns section of our avocado oil article.

Clinical Update

11/25/2018

Better Absorbed Fish Oil?

A specially formulated fish oil was shown to be absorbed better than regular fish oil. A closer look at the study, however, suggests that this benefit may be limited. Learn more, as well as how you can maximize fish oil absorption, in the How to Take section of the Fish & Marine Oil Supplements Review. (Also see our Top Picks for fish oil supplements.)

Clinical Update

12/17/2019

Fish Oil Approved for Elevated Triglycerides

A highly concentrated fish oil that was originally approved only for treating very high triglycerides has been further approved by the FDA to treat lower, but still elevated, triglycerides if cardiovascular risk factors are present. For details see the Prescription Fish Oil vs. Supplements section of the Fish Oil Supplements Review. Also see our Top Picks for fish oils, including highly concentrated fish oil.

Clinical Update

1/02/2017

Supplement vs. Prescription Fish Oil?

As we have written before, by choosing an extremely concentrated fish oil supplement, you can get essentially the same type of fish oil as you would get from a prescription fish oil. But according to a recent study, fish oil supplements are more likely to be rancid (oxidized) than prescription fish oil. However, a closer look at the study by ConsumerLab staff suggests that this finding may be misleading, as explained in the "Quality Concerns" section of the Fish Oil Supplements Review >>

Clinical Update

10/06/2020

Best Absorbed Form of Fish Oil?

Which form of fish oil is best absorbed? Find out what two recent studies showed in comparing triglyceride, ethyl ester, and monoacylglyceride forms of fish oil in the Forms of Fish Oil section of Fish Oil Supplements Review. Also see our Top Picks for fish oil.

Clinical Update

2/13/2021

Which Form of Fish Oil Is Best Absorbed

The amount of omega-3 fatty acids (EPA and DHA) that you absorb when taking fish oil depends on the form of oil and/or when you take it. A new study suggests that a certain form is better absorbed than others. Get the facts in the Forms of Fish Oil section of our Fish Oil Supplements Review. Also see our Top Picks for fish oil.

Clinical Update

7/14/2013

Fish Oil Linked to Prostate Cancer?

Headlines this week about a study showing an association between the fatty acids in fish oil and the development of prostate cancer have stirred concerns about consuming fish and fish oil supplements. For details about this study and studies of other effects of fish oil and omega-3 fatty acids, as well as test results and comparisons for 74 fish and other marine oil supplements, see the updated Fish/Marine Oil (Omega-3) Supplements Review >>

Clinical Update

12/20/2011

Algal Oil vs. Fish Oil

Fish get their omega-3's from algae and many people are now doing the same by taking algal oil, but how does it compare to fish oil? Experts recently reviewed studies of algal oil and concluded that it boosts ("good") cholesterol but it also increases LDL cholesterol -- which is often thought of as "bad" cholesterol. But there's more to the story. Get the details in the recently updated Fish/Marine Oil Supplements Review, which includes our test results for algal, krill, and fish oil supplements.

Clinical Update

3/23/2014

Fish Oil Study Finds No Heart Benefit

Findings of a large study reported this week showed that a daily fish oil supplement did not reduce the risk of cardiovascular disease in elderly people. So what's the bottom line for fish oil and heart disease? See the update to the Fish Oil Supplements Review, which includes the latest information about potential uses of fish oil and our tests of popular fish oil supplements. 

Clinical Update

5/10/2015

Flaxseed Oil for Improving Cholesterol?

A recently published study looked at the metabolic effects of taking daily flaxseed oil on middle-aged men. It found a possible benefit among those with higher triglyceride levels, but overall results were not impressive. More about the study, flaxseed oil, whole flaxseed, and our tests and comparisons of products, is found in the Flaxseed Oil, Evening Primrose Oil, Borage Oil, and Black Currant Oil Supplements Review >>

Clinical Update

5/24/2015

Fish Oil Increases Muscle/Strength

Last week we reported that vitamin D could help increase strength -- this week it's fish oil. A recent study found that taking a high dose of fish oil led to increases in muscle and strength in older individuals -- without additional exercise. As reported earlier, a lower of dose of fish oil may improve results of exercise. For the details, including specifics about the fish oil used, see the Fish Oil Supplements Review >> 

Clinical Update

6/24/2015

Problem with Too Much Krill Oil

Researchers recently gave overweight men a very large daily amount of krill oil (with a smaller amount of fish oil) with the hope it would improve their insulin sensitivity. Unfortunately, the opposite happened, suggesting that the oil could increase the risk of diabetes and cardiovascular disease. Details about the study, including dosage, are found in the "Concerns and Cautions" section of the Fish Oil and Omega-3 Fatty Acid Supplements Review (Including Krill, Algae, Calamari, Green-lipped Mussel Oil) >>

News Release

February 15, 2018

Tests Reveal How Much CBD is Really in CBD and Hemp Oils -- Some Don't Provide Amounts of CBD Listed on Labels

White Plains, New York, February 15, 2018 (UPDATED 2/11/19) — CBD (cannabidiol) has become popular for treating pain, helping with anxiety and insomnia, and a variety of other conditions, despite the fact that the FDA has stated it cannot legally be sold as a ...

News Release

November 27, 2017

Flaxseed and Other Popular Omega 3 & 6 Oil Supplements Tested, But Not All Brands Pass -- Tests of Black Currant Oil, Borage Oil, Evening Primrose Oil, Flaxseed Oil, and Hemp Oil Supplements

White Plains, New York, November 27, 2017 — Flaxseed oil and other popular seed oil are popular supplements that provide omega-3 and omega-6 fatty acids and may help with inflammatory conditions. But which seed oil supplements are the best? To find out, ConsumerLab.

News Release

January 10, 2017

Your Extra Virgin Olive Oil May Not Be, According to Review By ConsumerLab.com -- Top Picks Noted for Best Quality and Value

White Plains, New York, January 10, 2017 — Extra virgin olive oil may reduce the risk of coronary heart disease, breast cancer, and colorectal cancer, and may have other potential health benefits — likely due to its healthful fats and generally high concentration of antioxidant ...

Recalls & Warnings

December 07, 2023

Belmont Eyecare Warned for Colloidal Silver, MSM, and Castor Oil Eye Drop Claims

On December 1, 2023, the FDA issued a Warning Letter to Belmont Eyecare LLC, following a review of the company’s website, which found statements about the company’s Colloidal Silver Eye Drops, MSM Eye Drops, Organic Daytime Oil Eye Drops, Organic Daytime Oil Eye Drops Small, Organic ...

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 ...

Recalls & Warnings

February 28, 2024

Microbial Contamination Found in LightEyez MSM Eye Drops

On February 15, 2024, the FDA issued a Warning Letter to LightEyez Limited after testing by the agency found the company’s LightEyez.com MSM Eye Drops V2.0 — Eye Repair (MSM Eye Repair Drops) to have microbial contamination in samples of the drops.

Recalls & Warnings

June 04, 2020

FTC Warns 35 More Companies for Coronavirus Claims

On June 4, 2020, the FTC announced that it sent warning letters to 35 companies for selling products such as herbal products, immune system boosters, and vitamin C with unsupported claims that they can treat coronavirus (COVID-19).

News Release

September 13, 2016

Best Fish Oil? ConsumerLab.com Tests 44 Popular Omega-3 Supplements and Identifies Its Top Picks

White Plains, New York, September 13, 2016 — Fish oil and omega-3 fatty acid supplements containing EPA and DHA are among the most popular supplements, and clinical studies suggest a wide range of potential benefits, from improving mental health to treating inflammatory disease.

Recalls & Warnings

June 27, 2024

“Authentic” Rose Oil Often Is Not

Damask rose essential oil (Rosa × damascene) and products claiming to contain this oil, or “authentic rose oil” may often be adulterated or contain less expensive oils instead, according to a recent bulletin from the American Botanical Association (ABC).

News Release

May 07, 2014

Flaxseed and Other Popular Seed Oil Supplements Tested by ConsumerLab.com, But Not All Brands Pass -- Flaxseed, Black Currant, Borage and Evening Primrose Oils Reviewed

White Plains, New York, May 7, 2014 — Plant seed oils are popular supplements that provide omega-3 and omega-6 fatty acids, but which products offer the best value and quality? Recent analyses by ConsumerLab.

News Release

April 09, 2014

Best Fish Oil? ConsumerLab.com Testing Finds Many High Quality Supplements, But Pitfalls Exist

White Plains, New York, August 10, 2014 — Recent laboratory tests of fish oil, krill oil, algal oil, calamari oil, and green-lipped mussel oil supplements by ConsumerLab.com revealed quality problems with four out of 30 supplements selected for review.

News Release

August 22, 2012

Contamination and Other Problems Found in Fish Oil Supplements -- Large Review by ConsumerLab.com Reveals Excessive PCBs or Mislabeling in Over 30% of Omega-3 Supplements

August 22, 2012 — The quality of fish oil / omega-3 supplements varies across brands, according to recent tests by ConsumerLab.com, which independently reports on the quality of health products. Analyses of 35 products selected and purchased by ConsumerLab.

News Release

January 11, 2011

Spoilage and labeling errors found with some omega-3 and -6 supplements; Review of evening primrose, flaxseed, borage, and black currant oil supplements

WHITE PLAINS, NEW YORK — JANUARY 10, 2011 — A new report on the quality of omega-3 and -6 fatty acid supplements made from seed oils was released by ConsumerLab.com today. Only 11 of 17 products selected for testing met quality criteria for freshness and labeling.

News Release

September 28, 2010

ConsumerLab.com finds quality problems with nearly 30% of fish oil supplements reviewed; "Fishy" claims identified -- Softgels and liquids for adults, children and pets tested, including krill oil and algal oil supplements

White Plains, New York — September 28, 2010 — Tests of fish, algal and krill oil supplements revealed quality problems with 7 out of 24 products selected by independent testing organization ConsumerLab.com.

News Release

February 06, 2006

ConsumerLab.com finds most prostate supplements have correct ingredients, but three fail testing — Results posted for 22 supplements containing saw palmetto and beta-sitosterol

WESTCHESTER COUNTY, NEW YORK — FEBRUARY 6, 2006 — ConsumerLab.com announced test results today from its new Product Review of Prostate Supplements.

Recalls & Warnings

May 30, 2024

Young Living Essential Oils Agrees to Pay $5 Million to Settle Lawsuit

Young Living Essential Oils has agreed to pay up to $5 million to settle a class action lawsuit that charged the company with promoting its essential oils to reduce stress and anxiety, improve sleep, and other health-related claims without reliable scientific evidence.

Recalls & Warnings

January 03, 2025

Essential Oil Sold on Amazon Recalled

On January 2, 2025, Euqee Wintergreen Essential Oils, sold on Amazon were recalled because the packaging is not child-resistant and may pose a risk of poisoning for young children.

Recalls & Warnings

March 04, 2022

FTC, FDA, and DOJ Take Joint Action Against Herbal Tea Companies for COVID Claims

On March 3, 2022, the FDA, FTC, and DOJ sued a New York-based marketer of herbal tea, in attempts to permanently block deceptive ads that claim Earth Tea is clinically proven to treat, cure, and prevent COVID-19.

Recalls & Warnings

September 21, 2023

Moor Herbs, Inc Warned for Manufacturing Violations, Drug Claims

On August 1, 2023, the FDA issued a Warning Letter to Moor Herbs, Inc.

Recalls & Warnings

January 19, 2023

Male Sexual Enhancement Supplement Adam’s Secret Found to Contain Prescription Medication

On January 10, 2023, the FDA issued a warning letter to HIS Enterprise Inc dba Adam’s Secret USA, LLC after laboratory analysis found Adam’s Secret Extra Strength 3000 Platinum, Adam’s Secret Extra Strength Blue, Adam’s Secret Extra Strength Purple, Adam's Secret ...

Recalls & Warnings

February 24, 2022

Seller of Essential Oils Warned for COVID-19 Claims

On February 22, 2022, the FDA issued a warning letter to My Natural Treatment following a review of the company’s website and Facebook page, which found statements about the company’s thyme, black seed, eucalyptus, rosemary, and peppermint oil products to be drug claims.

Recalls & Warnings

July 21, 2022

Young Living Warned for Promoting Essential Oils to Treat Seasonal Allergies, Kidney Stones & More

On June 10, 2022, the FDA issued a warning letter to Young Living Essential Oils Corporate after an inspection of the company’s website and social media found statements about the company’s essential oil and CBD products to be drug claims.

Recalls & Warnings

May 23, 2020

FTC Warns 50 More Companies for Coronavirus Claims

On May 21, 2020, the FTC announced that it sent warning letters to 50 companies for selling products such as herbal products, immune system boosters, and vitamin C, with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

February 17, 2021

Adam’s Secret Male Enhancement Products Recalled Due to Undeclared Drugs

On February 15, 2021, adamssecret.co issued a recall of all lots of Adam's Secret Extra Strength 1500 and Adam's Secret Extra Strength 3000 male enhancement capsules because FDA analysis found them to contain sildenafil and/or tadalafil.

Recalls & Warnings

July 18, 2017

FDA Warns Seller of "Quick Slim with pure Hoodia Gardonii" and "Diabalance Herbal Blood Sugar Balance"

On July 11, 2017, the FDA issued a warning letter to Black Seed Herb, Inc.

Recalls & Warnings

May 02, 2020

Hopewell Essential Oils Warned for Coronavirus Claims

On April 27, 2020, the FDA issued a warning letter to Hopewell Essential Oils for selling its essential oils with unsupported claims that they can treat coronavirus (COVID-19).

Recalls & Warnings

April 28, 2020

Natures CBD Oil Distribution Warned for Joint Pain Claims

On April 20, 2020, the FDA issued a warning letter to Homero Corp DBA Natures CBD Oil Distribution, following an inspection of the company's website which found the company's products, including Natures Pure CBD Oil, CBD Froggies 25mg, CBD Froggies 50mg, CBD Edibles 200mg Frogs, CBD ...

Recalls & Warnings

September 07, 2002

FDA Sends Warning Letters to Seven Online Supplement Sellers For Therapeutic Claims

On August 27, 2002, the FDA posted seven "Cyber" letters recently issued from its Center for Food Safety and Applied Nutrition (CFSAN) to internet website operators promoting dietary supplement products that claim to diagnose, mitigate, treat, cure, or prevent a specific disease or class of ...

Recalls & Warnings

February 21, 2013

FDA and FTC Warn: Supplements Cannot Prevent, Treat Or Cure Cold And Flu

On February 11, 2013, the FDA and the Federal Trade Commission (FTC) jointly issued warning letters to three dietary supplement companies regarding their potential illegal marketing of products to prevent, treat or cure flu virus.

Recalls & Warnings

September 10, 2014

Seller of Joint Pain Supplement Warned for Drug Claims

On August 24, 2014, the FDA issued a warning letter to CreAgri, Inc., following a website review, which found statements made about the company's products, including Olivenol plus Easeflex, Olivenol plus Essence Capsules, and Olivenol plus Essence Elixer, to be drug claims.

Recalls & Warnings

July 12, 2013

Herbal Supplement Company Warned For Drug Claims, Manufacturing Violations

On June 18, 2013, the FDA issued a warning letter to Herbs of Light, Inc.

Recalls & Warnings

December 10, 2019

Poisoning from Essential Oils Increasing

Poisonings from essential oil ingestion increased by 16.3% in Australia over a 4-year period, according to a study recently published in the Medical Journal of Australia. The researchers also noted reports of increased frequency and/or severity of essential oil poisonings in the U.S.

Recalls & Warnings

July 05, 2012

FDA Warns Good Herbs Inc. of Manufacturing Violations and Drug Claims

The FDA issued a warning letter to Good Herbs Inc. on May 24, 2012, after a facility inspection found the company to be in violation of current manufacturing regulations, including lack of documentation and written procedures.

Recalls & Warnings

August 29, 2017

FDA Warns Seller of Supplements for Allergies, Joint Pain, Bone Health, and More

On August 16, 2017, the FDA issued a warning letter to Total Nutrition, Inc.

Recalls & Warnings

October 16, 2014

Seller of Black Cohosh, Ginkgo and More Warned For Manufacturing Violations and Drug Claims

On April 2, 2014, the FDA issued a warning letter to Pure Herbs, Ltd.

Recalls & Warnings

December 21, 2016

Seller of 5-HTP, Chromium, Curcumin and More Warned for Drug Claims

On December 1, 2016, the FDA issued a warning letter to Aurora Health and Nutrition following a review of the company's website, which found statements made about its products, 5-HTP, Alpha Lipoic Acid, the Argentyn 23 product line, Artecin 90 Vegetarian Capsules, ...

Recalls & Warnings

November 02, 2012

Manufacturer of Prostate, Inflammation and Cholesterol Supplements Warned For Drug Claims

On October 15, 2012, the FDA issued a warning letter to Ortho Molecular Products, Inc. for making drug claims about the following dietary supplements: Candicid Forte, Inflamma-bLOX, Lipitrol, Mucosagen, Prostatrol Forte, Resvoxitrol, Paracid Forte, VascuPak HTN and Lithium Orotate.

Recalls & Warnings

August 16, 2013

Maker of Energy, Weight Loss, Sleep and Vitamin D Supplements Warned for Manufacturing Violations

On July 22, 2013, the FDA issued a warning letter to N.V.E. Pharmaceuticals, 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

January 30, 2013

Seller of Omega-3 and Emu Oil Supplements Warned For Drug Claims, Misbranding

On November 19, 2012, the FDA issued a warning letter to Emu Products & Management, Inc. after a review of the company's website found statements that promoted the dietary supplements Multi-Omega Gel Caps, Recovery Gel Caps, ARP Gel Caps and the topical skin products Extreme Cryo Gel, F.A.C.E.