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Most Resveratrol Supplements Pass ConsumerLab.com Testing

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By: Sean Moloughney

Editor, Nutraceuticals World

Testing of resveratrol supplements conducted by ConsumerLab.com, White Plains, NY, found that most resveratrol supplements contained their claimed amounts of the ingredient (50 mg to 250 mg of trans-resveratrol per serving), passed tests for lead and cadmium contamination, and, if tablets were able to properly break apart. However, the company discovered that one resveratrol supplement contained only 2 mg of resveratrol per capsule—less than 2% of the amount provided by most other products. Another supplement failed to break apart properly in disintegration testing. A third resveratrol product lacked a proper description of the plant source of resveratrol as required by FDA. Among the products which passed testing, ConsumerLab.com found the cost to obtain 100 mg of resveratrol ranged from more than $3 to as little as 6 cents.

A recent survey by ConsumerLab.com of more than 10,000 supplement users showed that 20% had taken a resveratrol supplement in the past year. Resveratrol supplements have been popular since 2006, when studies in animals showed “life-extending” and “endurance-enhancing” effects, among other potential benefits.

ConsumerLab.com‘s Resveratrol Supplements Review included quality ratings, price comparisons and ingredient comparisons for 10 products selected, tested and rated, as well as for seven that passed ConsumerLab.com’s Quality Certification Program. 

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