Reviews and Information for Sports Research
Sports Research Testing Report Card
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Product Review
Astaxanthin Supplements Review
Our Tests Reveal Which Supplements Offer Most Value
Product Review
Creatine Supplements Review
See Which Creatine Provides High Quality at Lowest Cost
Product Review
Vitamin D Supplements Review (Including Calcium, Magnesium, Vitamin K, and Boron)
Find the Best Vitamin D Supplement and Avoid Problems
Product Review
Vitamin K Supplements Review (Including Calcium, Vitamin D, Magnesium & Boron)
Find Out If It's Worth Taking Vitamin K and Which Products Are Best
Product Review
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.
Product Review
Collagen Supplements Review
See our Top Picks for Wrinkles and Joints
Product Review
L-Theanine Supplements Review
Touted for Stress Relief, Do L-Theanine Supplements Work?
Clinical Update
6/11/2026
CREATINE BRANDS TESTED: One Failed — Are You Overpaying?
We tested 11 popular creatine supplements and found one that failed quality testing — while some people may be paying nearly 3X more than necessary for high-quality creatine.
Find out:
- Which brands passed – and which failed
- What creatine can and can’t do
- How to take creatine
- Safety concerns and side effects
See the full results in our Creatine Supplements Review -- covering creatine from Create, Fitness Labs, GNC, Life Extension, Momentous, Naked, Nutricost, Optimum Nutrition, Sports Research, Thorne, and more.
News Release
July 15, 2026
No Need to Pay Higher Prices for Astaxanthin According to ConsumerLab.com Tests
White Plains, NY, July 15, 2026 — Astaxanthin is promoted as a powerful antioxidant with health benefits ranging from reducing wrinkles to improving endurance and lowering triglycerides.
News Release
June 22, 2026
ConsumerLab Shows Which Creatine Is Best
White Plains, NY, June 22, 2026 — Creatine is rapidly gaining popularity, as shown in a recent survey, but are some creatine supplements better than others? ConsumerLab’s recent tests of creatine powders, capsules, and gummies showed that although most products met quality standards, some did not, ...
News Release
February 25, 2026
Top-rated Vitamin and Supplement Brands and Merchants for 2026 Based on Consumer Satisfaction
-- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users --
News Release
February 25, 2025
Top-rated Vitamin and Supplement Brands and Merchants for 2025 Based on Consumer Satisfaction
White Plains, New York, February 25, 2025 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on over 8,400 responses collected in November/December 2024.
News Release
August 12, 2024
Too Much Vitamin D? Some Supplements Contain Much More Than Claimed, According to ConsumerLab
White Plains, NY, August 12, 2024 — Getting adequate vitamin D is important to maintaining bone and cardiovascular health, and may have other benefits. However, getting too much vitamin D can have adverse effects, including increasing the risk of fractures and falls.
News Release
July 30, 2024
ConsumerLab Tests Reveal Best Vitamin K Supplements
White Plains, NY, July 30, 2024 — Vitamin K helps with proper blood clotting as well as with calcium utilization in bones and the cardiovascular system.
News Release
February 25, 2024
Top-rated Vitamin and Supplement Brands and Merchants for 2024 Based on Consumer Satisfaction
White Plains, New York, February 25, 2024 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on over 10,000 responses collected in November/December 2023.
News Release
July 26, 2023
Best Collagen Supplements for Skin and Joints, According to ConsumerLab Tests
White Plains, New York, July 26, 2023 — Collagen supplementation may modestly reduce wrinkles and the appearance of cellulite, and moderately decrease joint and tendon pain and improve flexibility in people with osteoarthritis.
News Release
March 09, 2023
L-Theanine Supplements Reviewed by ConsumerLab. Top Pick Chosen.
White Plains, New York, March 9, 2023 —L-theanine supplements are often promoted to reduce stress and improve sleep and cognition.
News Release
February 25, 2023
Top-rated Vitamin and Supplement Brands and Merchants for 2023 Based on Consumer Satisfaction
White Plains, New York, February 25, 2023 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,600 responses collected in November/December 2022.
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.
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
February 25, 2022
Top-rated Vitamin and Supplement Brands and Merchants for 2022 Based on Consumer Satisfaction
White Plains, New York, February 25, 2022 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,049 responses collected in November/December 2021.
News Release
February 25, 2021
Top-rated Vitamin and Supplement Brands and Merchants for 2021 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users
White Plains, New York, February 25, 2021 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,647 responses collected in November 2020.
News Release
February 25, 2020
Top-rated Vitamin and Supplement Brands and Merchants for 2020 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users
White Plains, New York, February 25, 2020 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,782 responses collected in late November and early December 2019.
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).
Recalls & Warnings
March 13, 2020
FDA Finds Problems at 52% of Supplement Manufacturing Sites in U.S. and 42% Abroad
ConsumerLab.com has obtained results of the FDA's inspections in Fiscal Year 2019 (October 1, 2018 - September 30, 2019) of 598 dietary supplement manufacturing facilities in the U.S.