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Vitamin K Supplements

See which vitamin K supplements are ConsumerLab's Top Picks. Also learn what vitamin K does and does not do, the difference between vitamin K1 and the MK-4 and MK-7 forms of vitamin K2, and information on the correct dosage, safety and side effects of vitamin K.

Vitamin K Supplements Review

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Product Review

Multivitamin and Multimineral Supplements Review

Best Multivitamins In 2023 -- Caution with Gummies

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

Have you tested vitamin K supplements with MenaQ7? Is this a good source of vitamin K if I need to avoid soy?

Information about MenaQ7, a MK-7 form of vitamin K2, including test results for a supplement containing MenaQ7.

Doctor's Best Vitamin K Bottle Against White Background

CL Answer

I'm considering taking vitamin K for my bones, but I take blood thinner (anticoagulant) medication. Is there a problem taking both?

Learn more about vitamin K, including info on interactions with blood thinners such as Coumadin and Jantoven, its effects on bones & impact on clotting.

Product Review

Nattokinase Supplements Review

Choose the Best Nattokinase Supplement. CL Tests Reveal Which Nattokinase Suppplements Provide the Best Quality & Value.

Nattokinase Supplements Tested by Consumerlab.com

Product Review

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

Find the Best Vitamin D Supplement with the Right Dose

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.

Bottle of Perque Bone Guard Forte

Product Review

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

Find Out What Magnesium Does, Who Needs It, and Our Top Picks Among Supplements

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.

Vitamins & Minerals That Should Be Taken Together or Separately -- various vitamins in spoons

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

CL Answer

What is the difference between forms of vitamin K2?

Learn about the different forms of vitamin K2 - MK-4 (synthetic) and MK-7 (natural, from natto).

Vitamin K: MK-4 vs MK-7 -- vitamin K tablets in the shape of the letter 'K'

CL Answer

Is soy in supplements good or bad for you?

Find out about the health benefits and/or safety concerns related to soy constituents (including soy isoflavones, soy protein, soy lecithin, and soybean oil), and learn how you can avoid soy in supplements if necessary.

Scoop of soy protein isolate placed among soybeans

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.

Product Review

Protein Powders, Shakes, and Meal Replacements Review

Find Out Which Protein Products Passed or Failed Our Tests

CL Answer

Is it better to get vitamins from foods or supplements, and are natural vitamins better than synthetic vitamins?

Learn more about the benefits of getting vitamins from food versus supplements, natural versus synthetic vitamins, and more.

Getting Vitamins and Minerals from Food vs. Supplements -- fruits, vegetables, and a spoon containing supplements on a table

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

Product Review

Fruits, Veggies, and Other Greens Supplements Review (Including Spirulina and Chlorella)

Avoid Lead in Greens, Problems with Pills, and Don't Give Up Eating Whole Foods.

Greens Review Oct 2023

CL Answer

Does OsteoMD improve calcium absorption and increase bone density?

ConsumerLab reviews the evidence for OsteoMD by 1MD, a bone health supplement promoted to slow bone loss and reduce the risk of osteoporosis.

OsteoMD by 1MD

News Release

February 24, 2023

Probiotics Rise in Popularity as Vitamin C, Melatonin, and Others Dip in Latest ConsumerLab Survey of Supplement Users

White Plains, New York, February 25, 2023 —A recent survey of 8,600 people who regularly use dietary supplements shows that probiotics (+3.04 percentage points), quercetin (+2.3 pts), and vitamin K (+1.

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

Clinical Update

6/08/2017

How To Get Vitamin K From Food

Many of the benefits of vitamin K - such as proper blood clotting and calcium utilization for bone and heart health - are associated with getting adequate vitamin K from foods. The good news? Brand new research has found much higher amounts of vitamin K2 (the form associated with cardiovascular benefits) in dairy foods than previously known. However, the amounts vary tremendously depending on whether these foods are full-fat, or reduced-fat or fat-free. Get the details in the "Vitamin K from food" section of the Vitamin K Supplements Review. If you're interested in a vitamin K supplement, see our Top Picks among brands.

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.

Clinical Update

10/13/2020

Vitamin K for Weak Bones?

Does supplementing with vitamin K2 as MK-7 along with vitamin D and calcium improve bone density in postmenopausal women with weak bones (osteopenia)? Find out what a recent study showed in the What It Does section of Vitamin K Supplements Review. Also, learn about other forms of vitamin K used for increasing bone density and see our Top Picks for vitamin K.

Clinical Update

10/31/2020

Warfarin and Low-Dose Vitamin K

Should people on warfarin (Coumadin) take low-dose vitamin K to help stabilize fluctuations in INR? Learn what experts say in the What It Does section of our Vitamin K Supplements Review. Also, learn if other blood thinning drugs are affected by vitamin K in the Concerns and Cautions section of our review.

Clinical Update

11/18/2020

Vitamin K and Breast Cancer Risk

Can eating foods high in vitamin K affect the risk of breast cancer? Learn what a recent study showed in the What It Does section of our Vitamin K Supplements Review. Also see our Top Picks for vitamin K supplements.

Clinical Update

2/18/2020

Vitamin K for Bone Density?

Vitamin K (as MK-7) was given daily for one year to older men and women to see if it would improve bone mineral density. Some also received vitamin D and calcium. Find out if it helped, as well as the results of related studies, in the What It Does section of the Vitamin K Supplements Review. Also see our Top Picks among vitamin K supplements.

Clinical Update

8/26/2020

Vitamin K & Heart Health

Can taking vitamin K supplements improve vascular stiffness or lower blood pressure in people with kidney disease? Find out what a recent study showed in the What It Does section of our Vitamin K Supplements Review. Also see our Top Picks for vitamin K.

Clinical Update

4/28/2020

A Role for Vitamin K in COVID-19?

A new study showed a link between vitamin K and the development of COVID-19. Learn what this means in the What It Does section of our Vitamin K Supplements Review. Also see our Top Pick among vitamin K supplements.

Clinical Update

3/31/2013

Low Dose of Vitamin K Helps Bone

Using a much lower dose of vitamin K than in previous studies, a new study found that intake of a particular form of vitamin K decreased age-related decline in bone mineral content and density in certain bones in postmenopausal women. Get the details, as well as our ratings of these supplements, in the updated Vitamin K Supplements Review >>

Clinical Update

1/15/2021

Vitamin K & Risk of COVID Death

A marker of low vitamin K levels has been linked to a higher risk of death in people with COVID-19, according to a new study. Get the details in the COVID-19 section of our Vitamin K Supplements Review.

Clinical Update

10/23/2021

Vitamin K and Coronary Artery Calcification

Can supplementing with vitamin K1 slow coronary artery calcification? See what a new study among people with diabetes found in the What It Does section of our Vitamin K Supplements Review. Also see our Top Picks among vitamin K supplements.

Clinical Update

1/11/2022

Taking Vitamin K With Vitamin D?

Is it necessary to take vitamin K when taking vitamin D? Find out in our updated answer to the question: Do you need to take vitamin K when taking vitamin D?

Clinical Update

3/15/2024

Vitamin K - Name Change

The name of one of our Top Picks among vitamin K supplements has changed, although the ingredients remain the same. For details, see our Top Picks among vitamin K supplements.

Product Review

Olive Leaf Extract Supplements Review

Learn What Olive Leaf Does and the Best Brands

CL Answer

Can biotin supplements really strengthen nails or improve hair? Can other supplements help?

Learn more about strengthening brittle nails with vitamin B-7 (biotin), based on clinical evidence.

Supplements for Brittle Nails -- healthy nails

Product Review

Lion's Mane and Chaga Supplements Review

Read Labels Carefully -- Many Can Mislead

Lion's Mane and Chaga Supplements tested by ConsumerLab.com

Product Review

Electrolytes & Sports Drinks Review

See Which Sports Drinks, Powders, and Pills Deliver the Right Electrolytes

Product Review

Lavender and Tea Tree Essential Oils Review

Oils Tested for Authenticity and Purity

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

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

I take warfarin (Coumadin), an anticoagulant drug. Are there supplements I should avoid, or be taking, due to this drug?

Find out which supplements should be avoided when taking blood thinners (anticoagulants) like warfarin (Coumadin), including vitamin K, St. John's wort, and curcumin.

Warfarin Supplement Interactions -- bottle of pink warfarin tablets

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.

Supplement Interactions With Antibiotics -- man reading prescription bottle instructions

CL Answer

Do any supplements or foods benefit people with Crohn's disease? Are there any supplements that should be avoided?

Find out the most common vitamin and mineral deficiencies in people with Crohn's disease, including iron, B6, B12, vitamin D, zinc and others, plus evidence for N-acetyl-glucosamine (NAG), fish oil, and curcumin.

Supplements for Crohn's Disease -- Crohn's Disease Written on Notepad, Pills

CL Answer

Which supplements and lifestyle changes improve sleep, and which cause insomnia?

Find out which vitamins may help you sleep and learn if any vitamins or supplements can cause insomnia.

Clinical Update

4/29/2022

Vitamin K and Heart Valve Calcification

Can supplementation with the MK-7 form of vitamin K2 slow the progression of aortic valve calcification, a risk factor for cardiovascular disease? See what a new study found in the Heart Disease section of our Vitamin K Supplements Review.

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

Clinical Update

1/05/2024

Vitamin K2 & Breast Cancer

Does supplementing with vitamin K2, which can be derived from fermented soy (natto), increase the risk of breast cancer? Find out in the Concerns and Cautions section of our Vitamin K Supplements Review, which includes our Top Picks for vitamin K.

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

Clinical Update

2/06/2024

Vitamin K2 + D to Slow Calcification of Arteries?

Does taking vitamin K2 plus vitamin D slow the progression of coronary artery calcification? Find out what a recent study showed in the Heart disease section of our Vitamin K Supplements Review, which includes our Top Pick for vitamin K.

CL Answer

Are there supplements, foods, or beverages that I should avoid when taking clopidogrel (Plavix)?

Learn about supplement interactions with clopidogrel (Plavix). Supplements that may interact with this medication include cannabidiol (CBD), grapefruit, St. John's wort, ginkgo and others.

Product Review

Green Tea Review: Tea Bags, Matcha Powders, and Supplements

Some green teas provide barely any green tea polyphenols, while some others are high strength. See the Test Results and Our Top Picks for Green Tea.

Green Tea Review 2024

Product Review

Vitamin E Supplements Review

Find the Best Vitamin E Supplement. Tests and Reviews of Popular Vitamin E Supplements & CL's Top Picks.

Vitamin E Supplements, Cream, and Oil Tested by ConsumerLab.com

CL Answer

Are the "% DV" numbers on vitamin supplement labels really based on what I need?

Learn more about percent daily values, including if they are good standards of measure or if better upper and lower limits exist.

Supplement Facts on Back of Supplement Bottle

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

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 "whole food" multivitamins don't include synthetic vitamins? How about Complete Foods, Sunwarrior, Garden of Life, Nature's Brands, and Doctors' Research?

Find out which "whole food" multivitamins are only from foods and which include synthetic vitamins, including Complete Foods Nutrition-OctoMega MultiVitamin; Sunwarrior; Garden of Life-MyKind Organics; Nature's Brands-PhytoVitamins; Doctors' Research MultiVitamin.

Fresh Broccoli and Lemon Beside Multivitamins

CL Answer

What is desiccated beef liver? What is it used for, and is it safe?

Description of desiccated beef liver, including what it is used for, its nutrient content, and safety concerns.

Beef liver powder

CL Answer

Is it safe to take CoQ10 while taking blood thinners like warfarin or Plavix (clopidogrel)?

Learn more about the possible counteractive effects of CoQ10 and blood thinners, including safety.

CoQ10

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.

None

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

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

1/14/2022

Does Vitamin K2 Reduce Artery Calcification?

In response to communications from several readers about the role of vitamin K2 supplementation in reducing artery calcification, we added information this week to our answer to the question: Do you need to take vitamin K when taking vitamin D?

Clinical Update

3/08/2024

Newly Approved Bone Health Supplement

We recently tested NuBest Tall 10+, a bone health supplement that contains calcium, vitamin D, and vitamin K. It was Approved for Quality and is now in our Calcium and Bone Health Supplements Review.

The product was tested and Approved through ConsumerLab's Quality Certification Program.

CL Answer

What are the health benefits of green tea, and is it safe?

ConsumerLab explains green tea's potential health benefits for everything from fighting cancer to helping your heart.

Cup of green tea with dried tea leaves

CL Answer

Do any supplements improve balance or reduce the risk of falls?

Find out which vitamins & supplements may improve your balance to help reduce the risk of falling, including vitamin D and protein.

Supplements to Improve Balance & Reduce the Risk of Falls -- older woman walking up stairs

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.

Multivitamins on a table with a multivitamin supplement nutrition label in front of the multivitamins

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

CL Answer

A blood test showed my vitamin D level is low. How do I know how much vitamin D to take?

Find out how to increase vitamin D blood levels, including a good target range.

Vitamin D

Recalls & Warnings

September 01, 2022

Elite One Source Nutritional Services Warned for Manufacturing, Labeling Violations

On August 5, 2022, the FDA issued a warning letter to dietary supplement manufacturer Nutritional Laboratories International, Inc. (DBA Elite One Source Nutritional Services, Inc.

Product Review

Acai Berry Supplements and Beverages Review

Find the Best Acai Berry Supplements and Beverages. See Which Acai Berry Supplements and Beverages Passed Our Tests of Quality.

Acai berry supplements and beverages reviewed by ConsumerLab.com

Product Review

Lactose Intolerance Products Review (Lactase Enzyme Supplements and Lactose-Free Milks)

Choose the Best Lactase Enzyme Supplement and Lactose-Free Milk. Find a CL Approved Lactose Intolerance Product.

Lactase Supplements Reviewed by ConsumerLab.com

Product Review

Maca Supplements Review

Choose the Best Maca Supplement. Make Sure Your Maca Supplement Isn't Contaminated With Lead.

Maca Supplements Reviewed by ConsumerLab.com

Product Review

L-Arginine Supplements Review

Choose the Best L-Arginine Supplement. Find Out Which L-Arginine Supplement Passed CL's Tests.

L-Arginine Supplements Reviewed by ConsumerLab.com

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

Do arnica pills, gels, creams, or sprays reduce bruising, pain, or swelling?

Find out if arnica pills, gels, creams, or sprays can reduce bruising, pain, or swelling, help with varicose veins, or muscle pain after exercise.

Arnica Gel and Cream for Bruises and Pain -- tube of arnica cream

Product Review

Cinnamon Supplements and Spices Review

CAUTION: Some Cinnamon Products High in Toxin. See Which Passed or Failed and our Top Picks!

Cinnamon Supplements and Spices Tested by ConsumerLab.com

Product Review

Ginger Supplements, Chews & Spices Review

Tests Reveal Best and Worst Ginger Supplements & Spices. Poor Quality and Lead Contamination Discovered in Some Products.

Ginger Supplements Reviewed By Consumerlab.com

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.

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.

Recalls & Warnings

December 29, 2015

Maker of Vitamin K, Vitamin A & More Warned for Manufacturing Violations, Drug Claims

On December 10 2015, the FDA issued a warning letter to Dherbs Health Emporium, Inc.

Recalls & Warnings

October 06, 2020

FDA Warns Seller of Red Yeast Rice, Vitamin D, Blood Pressure Supplements, and More

On August 28, 2020, the FDA issued a warning letter to Dr. Sam Robbins, Inc.

Recalls & Warnings

November 06, 2014

Seller of Prostate, Heart Supplements and More Warned for Drug Claims

On October 9, 2014, the FDA issued a warning letter to Health Research Laboratories, LLC/New World Health, following a review of the company's websites, which found statements made about AtheChel Advanced, Betarol, BioTherapex, Omega-3 Cardio Plus, RejuvaLifeRx, and Ultimate Health Formula to be ...

Recalls & Warnings

May 08, 2021

FDA Warns Seller of Vitamins B12, C, D, and K

On April 7, 2021, the FDA issued a warning letter to Unived Inc following a review of the company's websites, which found statements made about the company's products Unived brand Colox, CalDveg, B12+D3, and D3+K2-7 to be drug claims.

News Release

February 24, 2022

Consumers Returned to Pre-Pandemic Supplement Usage in 2021, ConsumerLab Survey Reveals

White Plains, New York, February 24, 2022 —A survey of 8,049 people who use dietary supplements shows many supplements that declined in use in 2020 began bouncing back in 2021, such as magnesium (+2.4 percentage points), and CoQ10 (+2.7 pts).

News Release

February 26, 2021

COVID Changed Supplement Popularity in 2020, ConsumerLab Survey Reveals

White Plains, New York, February 26, 2021 — A survey of 9,647 people who use dietary supplements shows that the supplements which experienced the greatest growth in popularity in 2020 were those being promoted to prevent or treat infection with SARS-CoV-2, the coronavirus that causes COVID-19.

News Release

February 12, 2021

Don't Be Surprised by New Labels on Many Vitamins

White Plains, New York, February 12, 2021 — It took almost four years, but more accurate labels on vitamin and mineral supplements are finally here and consumers should not be surprised to see changes, says Tod Cooperman, M.D., president and founder of ConsumerLab.

News Release

June 01, 2017

Best Vitamin K Supplement? ConsumerLab.com Tests Popular Products and Reveals Its Top Picks

White Plains, New York, June 1, 2017 — Vitamin K plays an important role in proper blood clotting as well as with calcium utilization in bones and the cardiovascular system, but do most people need a vitamin K supplement? And do products on the market contain what's claimed on their labels? ...

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.

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.

News Release

February 24, 2017

Vitamin D Supplements Maintain Top Spot in Popularity, as Probiotics Surpass Multivitamins to #4 Behind Fish Oil and CoQ10 in Latest ConsumerLab.com Survey

White Plains, New York, February 24, 2017 — A recent survey of over 9,505 people who use dietary supplements shows the most popular dietary supplement to be vitamin D, followed by fish oil, CoQ10, probiotics, and multivitamins.

News Release

July 27, 2016

ConsumerLab.com Helps Consumers Make Sense of the FDA's Updated Daily Values (DV) for Vitamins and Minerals

White Plains, New York, July 27, 2016 — Daily Values (DV) for certain vitamins and minerals have been changed by the FDA, as part of the agency's revised rules for nutrient and supplement facts labeling. The changes went into effect on July 26, 2016.

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.

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.

News Release

February 11, 2013

ConsumerLab.com Reports Problems with Some Vitamin D and Calcium Supplements -- Wrong Amounts of Vitamin D, Pills Which Don’t Break Apart, and Lead Contamination Found

White Plains, New York, February 11, 2012 — Vitamin D and calcium are among the most popular supplement ingredients in the U.S., but recent tests by ConsumerLab.com show problems with 4 out of 25 products which contain these ingredients.

News Release

February 05, 2012

Fish oil and multivitamins most popular supplements in ConsumerLab.com survey -- Internet most popular place to shop

WHITE PLAINS, NEW YORK — FEBRUARY 5, 2012 — A survey of over 10,000 savvy consumers of supplements shows the most popular supplements to be fish oil, multivitamins, vitamin D, calcium and CoQ10, in that order.

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

January 31, 2011

Vitamin D use increased 52% in past two years according to ConsumerLab.com survey of supplement users -- Fish oil continued to surpass multivitamins as most popular supplement and Internet was most common place to buy supplements

WHITE PLAINS, NEW YORK — FEBRUARY 1, 2011 — Among people who use dietary supplements, the most popular products at the end of 2010 were fish oil, multivitamins, vitamin D, calcium and CoQ10 according to a survey by ConsumerLab.com. Use of vitamin D surged in 2010 to 56.

Recalls & Warnings

January 13, 2015

Seller of Speech Disorder Supplement Agrees to Settle FTC Charges of Deceptive Claims

NourishLife, LLC, seller of supplements promoted for treating children's speech disorders, has agreed to pay $200,000 in order to settle FTC charges that claims made on the company's website and in brochures were deceptive and not supported by science.

Recalls & Warnings

January 02, 2012

Manufacturing Violations for Multivitamin, Vitamin K and Other Supplements

On December 19, 2011, the U.S. FDA sent a Warning Letter to Milk Specialties Global regarding manufacturing violations. Affected products include PrimaForce Proliver Capsules, Dr. Mercola Vitamin K2, Active Women’s Multivitamin/Multimineral, Cremagnavol, Immune Support, and HPF Women’s Multi.

News Release

March 10, 2009

ConsumerLab.com reports deficiencies in some supplements containing calcium, vitamin D, or vitamin K -- Focus on bone health supplements and new uses for vitamins D and K

WHITE PLAINS, NEW YORK — MARCH 10, 2009 — In a large review of supplements relating to bone health, ConsumerLab.com reported today that tests showed five products to provide only 52.5% to 89% of the listed amounts of calcium or vitamin K. ConsumerLab.

Recalls & Warnings

August 05, 2016

Seller of Fertilix Warned By FDA

On July 22, 2016, the FDA issued a warning letter to CellOxess LLC, following a review of the company's websites, social media pages and marketing literature which found statements made about Fertilix Preconceptual, Fertilix Low Dose and Fertilix Max to be drug claims.

Recalls & Warnings

July 23, 2016

Seller of GlucoCor Warned for Drug Claims

On June 30, 2016, the FDA issued a warning letter to MC-COR, LLC, following a review of the company's website and Facebook page which found statements made about its GlucoCor capsules to be drug claims.

Recalls & Warnings

March 08, 2016

Maker of Calcium and Vitamin C Supplements Warned for Manufacturing Violations

On September 17, 2015, the FDA issued a warning letter to Raphah, Inc.

News Release

December 09, 2008

Tests of zinc supplements by ConsumerLab.com show only some provide dosage proven to shorten colds, reduce eye disease. Lead contamination found in one product.

WHITE PLAINS, NEW YORK — DECEMBER 9, 2008 — Zinc supplements can shorten colds and reduce the progression of advanced macular degeneration, among other uses. But a new report by ConsumerLab.

Recalls & Warnings

June 22, 2023

FDA Warns Warrior Labz for Selling Products with Steroid-Like Substances and Prescription Drugs

On June 12, 2023, the FDA issued a warning letter to Warrior Labz SARMS following inspection of the company’s website and social media, which found that the company sold the following products labeled as containing steroid-like substances known as selective androgen receptor modulators ...

Recalls & Warnings

July 14, 2022

FDA Warns Company Selling Supplements with Dangerous Steroid-like Substances

On July 6, 2022, the FDA issued a warning letter to Elite Supplement Center LLC and Elite Supplement Training Facility LLC for selling the following products labeled as containing steroid-like substances known as selective androgen receptor modulators (SARMs), which are not permitted in dietary ...

Recalls & Warnings

February 06, 2016

Seller of Turmeric, Milk Thistle and More Warned for Manufacturing Violations, Drug Claims

On January 15, 2016, the FDA issued a warning letter to Terra Firma Botanicals, Inc.

Recalls & Warnings

February 03, 2016

Seller of Weight and Enhancement Supplements Warned For Drug Claims

On December 11, 2015, the FDA issued a warning letter to The One Minute Miracle, Inc., following a review of the company's website which found statements made about   Miracle Diet 30 and Miracle Rock 48 to be drug claims.

Recalls & Warnings

January 26, 2016

Seller of CoQ10, SAM-e, Vitamin D, and More Warned for Manufacturing Violations, Drug Claims

On January 15, 2016, the FDA issued a warning letter to Nutri-Dyn Midwest, Inc., following a facility inspection which found the company's products, including Cardioauxin BP, Zinc Lozenge, Oliver, Pau D'Arco, Petadolex, Chondro Jointaide, Dynagesic, SAMe-200, Gugulipid.

Recalls & Warnings

January 20, 2016

Maker of Growth Hormone, Testosterone Booster Warned for Manufacturing Violations, Misbranding

On January 8, 2016, the FDA issued a warning letter to Nutraloid Labs Inc.

Recalls & Warnings

January 20, 2016

Seller of Aloe, Moringa Supplements Warned for Manufacturing Violations, Drug Claims

On January 13, 2016, the FDA issued a warning letter to Alkebulan International Services, LLC, following a facility inspection which found the company's products,Aloe Ferox and Moringa Oleifera Capsule to be adulterated because they prepared, packed, or held under conditions that ...

Recalls & Warnings

January 16, 2016

Seller of Liver, Lung Support Supplements Warned for Drug Claims

On January 4, 2016, the FDA issued a warning letter to Tibetan Herbal Balance, Inc.

Recalls & Warnings

July 23, 2016

Maker of "Super Food" Warned for Manufacturing Violations

On July 12, 2016, the FDA issued a warning letter to TerraVare, Inc.

Recalls & Warnings

May 24, 2016

Seller of Joint Health, Omega-3 Supplements & More Warned for Manufacturing Violations, Drug Claims

On May 13, 2016, the FDA issued a warning letter to Rocky Fork Formulas, Inc.

Recalls & Warnings

May 15, 2016

Seller of Vision Supplements Warned for Drug Claims

On April 28, 2016, the FDA issued a warning letter to Macular Health, LLC.

Recalls & Warnings

March 29, 2016

Maker of Bone Health, Prostate, Cholesterol Supplements and More Warned for Drug Claims

On March 17, 2016, the FDA issued a warning letter to Rx Vitamins, Inc., following a facility inspection which found the company's products, includingTestost-Rx, DB-7, The Bone Density Formula, NaturLo Cholesterol, ThyRx-7 and Arth-9 to be misbranded.

Recalls & Warnings

March 08, 2016

Seller of Echinacea Warned Manufacturing Violations, Drug Claims

On February 25, 2016, the FDA issued a warning letter to Herbal Energetics/ In Joy Organics, following a facility inspection which found the company's product, X Out-Rays to be adulterated because it was prepared, packed, or held under conditions that violate Current Good ...

Recalls & Warnings

August 02, 2016

Seller of Whey Protein Warned for Manufacturing Violations, Drug Claims

On July 22, 2016, the FDA issued a warning letter to New Horizon Nutraceuticals, LLC, following a facility inspection which found the company's product, One World Whey Protein Power Food to be adulterated because it was prepared, packed, or held under conditions that violate Current ...

Recalls & Warnings

March 21, 2013

Probiotic Recalled Due To Undeclared Soy

On March 20, 2013, New Chapter, Inc. issued a voluntary recall of one lot of its Probiotic Elderberry dietary supplement because it may contain undeclared soy.

Recalls & Warnings

October 25, 2016

FDA Warns Maker of Sublingual Melatonin and Progesterone Cream

On October 12, 2016, the FDA issued a warning letter to Threshold Enterprises, Ltd.

Recalls & Warnings

October 18, 2016

Seller of Sublingual Vitamins Warned for Drug Claims

On August 31, 2016, the FDA issued a warning letter to Bio-Stasis International, Inc., following a review of the company's website which found statements made about its sublingual tablets, ViraPress, Vitamin D-3 and Vitamin B-12. to be drug claims.

Recalls & Warnings

September 07, 2016

Seller of Herbal Formulas for Cholesterol, Prostate & More Warned For Drug Claims

On July 29, 2016, the FDA issued a warning letter to Healing-Scents following a review of the company's website, which found statements made about its products, Heart Herbs, Cholesterol Regulation Herbs, Diabetes Regulation Herbs, Prostate Healer Herbs, High Blood Pressure Herbs, ...

News Release

November 18, 2008

Adulteration Suspected with Some "Memory" Supplements -- Few Ginkgo and Huperzine Supplements Pass ConsumerLab.com Tests; Quality High for Acetyl-L-Carnitine

WHITE PLAINS, NEW YORK — NOVEMBER 18, 2008 — Tests by ConsumerLab.com of Ginkgo biloba supplements show that few products meet quality standards.

News Release

October 28, 2008

Tests reveal quality problems with vitamin A supplements -- New ConsumerLab.com report focuses on vitamin A, including beta-carotene and cod liver oil

WHITE PLAINS, NEW YORK — OCTOBER 28, 2008 — ConsumerLab.com is cautioning that the amount vitamin A in some supplements may be much higher or lower than the amount stated on labels. Among ten supplements recently selected for testing, ConsumerLab.

News Release

October 02, 2008

ConsumerLab.com finds melatonin supplements range in strength but ingredient quality is high

WHITE PLAINS, NEW YORK — OCTOBER 2, 2008 — ConsumerLab.com announced test results today from its new Product Review of Melatonin Supplements.  Melatonin supplements may help treat certain sleep disorders and disturbances, including jet lag.

News Release

September 17, 2008

ConsumerLab.com's tests of menopause supplements reveal wide range in strength and quality; mislabeling and contamination discovered -- Soy and red clover isoflavones, black cohosh, and progesterone products tested

WHITE PLAINS, NY — September 17, 2008 — Risks associated with traditional hormone therapy for symptoms of menopause have increased public interest in alternative treatments, particularly dietary supplements. But a report today of recent tests by ConsumerLab.

News Release

August 05, 2008

ConsumerLab.com Find Fifty Fish Oil Supplements Pass Quality Testing -- New Report Helps Consumers Choose Among Pills, Liquids, Foods and Beverages with Omega-3 Fatty Acids (EPA and DHA)

WHITE PLAINS, NEW YORK — AUGUST 5, 2008 — ConsumerLab.com announced today that testing of fifty omega-3 fish oil supplements, foods or beverages (including two marketed for pets) found all to have safe levels of mercury, lead and PCBs.

Recalls & Warnings

December 02, 2020

Seller of Vitamin C, Elderberry, Silver, and More Warned for COVID-19 Claims

On November 10, 2020, the FDA issued a warning letter to Sage Woman Herbs, Ltd.

Recalls & Warnings

December 02, 2017

Tests Reveal Additional Concerns About SARMs

SARMs (selective androgen receptor modulators) are steroid-like substances often illegally marketed as dietary supplements or drugs and typically promoted for building lean muscle mass, as they can act as anabolic steroids. They include compounds such as Ostarine, LGD-4033, or Andarine.