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- Instant Access to Reviews for OVER 1,000 Products!
- Quality Ratings and Product Comparisons
- Expert Insights and More!
- Fish, Krill and Other Marine Oil Omega-3 Supplements
- Omega-3 & -6 Oils from Black Currant, Borage, Evening Primrose and Flaxseed Oil Supplements
- Flavonols in Cocoas and Chocolates
- B Vitamins
- ... and More!
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Best Fish Oil? Testing Finds Many High Quality, But Pitfalls Exist Full Review
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Most Popular Reviews |
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Other Recent Reviews |
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Tests and Comparisons of Korean, Chinese & American Ginseng
25% of Ginseng Supplements Low in Strength
Most Garcinia (HCA) Supplements Fail CL's Tests
Garcinia Weight Loss Supplements Found Lacking
Many Failures Among Supplements for Joint Disease in Dogs and Cats
Choose Joint Supplements for Pets Carefully!
Tests and Comparisons of 25 Vitamin C Supplements
Vitamin C Not Accurately Listed on 27% of Supplements
Tests of 19 Creatine and Amino Acid Supplements
Avoid Pitfalls with Muscle Enhancement Supplements
Tests of Valerian Supplements -- Two Fail for Lead
Valerian "Sleep" Supplements Vary in Key Compounds
See Our Picks for Protein, Energy, Fiber & Whole Food Bars
How Does Your Nutrition Bar Stack Up?
20 Resveratrol Supplements Tested
What's Really in Resveratrol Supplements?
Popular Protein Powders, Shakes and Drinks Reviewed
31% of Protein Powders Flunk Quality Tests
Several Greens/Whole Foods Powders and Pills Fail Tests
Contamination in Greens and Whole Foods Powders
Test Results and Comparisons of Potassium Supplements
Don't Be Confused by Potassium Supplements
Watch Out for Fake Bilberry Supplements
Only 75% of Bilberry Supplements Pass Tests
Check the Strength and Purity of Green Tea
What's Really In Green Tea Supplements, Teas, and Drinks?
Quality Ratings of 18 St. John's Wort Supplements
Many Pitfalls to Avoid with St. John's Wort
Vitamin K Supplements Tested and Compared
See How Much They Really Contain and Avoid Problems
Lycopene Supplements Vary in Quality and Price
Test Results for 13 Lycopene Supplements
Most Milk Thistle/Liver Formula Products Low in Key Component
Only 4 of 11 Milk Thistle Supplements Approved in Quality Tests
Deficiencies Found in B-Complex Products; More Caffeine Than Expected in Energy Shot Drinks
Tests of Energy Drinks, B-Complex and B Vitamin Supplements
50% of Green Coffee Supplements Lack Expected Ingredients for Weight Loss
Find Out Which Green Coffee Bean Extracts Passed or Failed
Lutein, Zeaxanthin and Vision Formulas Vary Widely
Which Vision Supplement Is Right for You?
Under 25% of Selenium Discovered in a Product; No Price / Quality Link
Not All Selenium Supplements Deliver Promised Ingredient
Results for Ginkgo, as well as Huperzine A and Acetyl-L-Carnitine
Memory and Cognition Supplements Reviewed.
Avoid Magnesium Supplements with Misleading Labels!
Best and Worst Quality Magnesium Supplements Identified.
Huperzine A Supplements -- Potential Help for Alzheimer's Disease
Find Out Which Huperzine A Supplements Are CL Approved
Acetyl-L-Carnitine Supplements Tested
Quality is High, But So Are Prices -- We Found the Best Value
See Ratings and Comparisons for 21 Vitamin E Products
What's In
Problems Found with Supplements for Joint Disease in Dogs, Cats, and Horses
Joint Supplements for Pets -- Choose Carefully!
Find a CL Approved Supplement That May Help with Prostate Symptoms
Some Problems Found Among Saw Palmetto and Beta-Sitosterol Supplements
22 Zinc Supplements, Lozenges, and Liquids Tested
Shop Carefully for Zinc Supplements to Get Proven Dosage and Best Price
African Mango -- Get the Facts
Can African Mango Supplements Help You Lose Weight?
Lactose Intolerance Products Found to Vary in Strength and Cost
Can Lactose-Free Milk and Supplements Help with Intolerance?
They're Popular in the Gym, But Can Nitric Oxide Supplements Help You?
Do Nitric Oxide Supplements Work?
Be Sure Your SAM-e Passed and That You're Not Paying Too Much
30% of SAM-e Supplements Selected for Review Fail Testing
Not All Vitamin A Supplement Pass Tests. Check Ratings and Prices
Vitamin A from Beta-carotene, Cod Liver Oil Tested.
L-Arginine Supplements Pass Quality Review But Dosage of Some May Not Be Effective for Expected Use
Find Out How Your Arginine Compares!
Only 30% of Selected Sexual Enhancement Supplements Pass Quality Tests
Find Out Which Male and Female Enhancement Supplements Passed or Failed
Find Out How Soy, Red Clover, Black Cohosh, and Progesterone Products Rated!
Most Menopause Supplements and Creams Approved, But Some Found Contaminated or Lacking Claimed Amount of Ingredient
Baobab - A New Superfruit?
Find Out What's In Baobab Before You Use It
100-Fold Difference Found in Cost of Iron Supplements, But Quality High
Are You Getting the Best Value and Using Right Form of Iron?
Spoilage and Labeling Errors Found with Some Omega-3 and -6 Supplements
Flaxseed, Evening Primrose, Borage, and Black Currant Oils Tested
DHEA Supplements -- Do They Work and Which Brands Deliver?
CL Finds Just 15% of Listed DHEA in One Supplement; 11-Fold Range in Cost by Brand
L-Tryptophan Supplements are Back -- But Are They Safe? Do They Work?
Some Supplements Can Help Lower Cholesterol and Reduce the Risk of Heart Disease
Find Out Which Can and Which Can Not!
Carcinogen Found in Several Chromium Supplements (Including Some for Weight Loss)
Use Our New Results to Choose Carefully
Supplements for Slimming Tested; Most Deliver Promised CLA
One Found Short on Ingredient
Over 400 brands tested. Choose one below or see a complete list.
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In addition to our product reviews our encyclopedia covers the following:
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