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Beware of dodgy resveratrol suppliers
July 4, 2008 by Anonymous, 1 year 18 weeks ago
Comment id: 30933
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Since the Dr. Sinclair study was published in Nature a flood of dubious companies have sprung up selling resveratrol. One even makes his capsules in a rented house in Florida. Consumer Lab, an independent testing authority, evaluated the major brands and found many lacking in content and quality. The highest potency products that passed their evaluation were Biotivia, Transmax and Bioforte. A product by Life Extension Co. failed badly with only 26% of the claimed resveratrol. Another brand, Revatrol, had virtually no trans-resveratrol in its supplement. The ConsumerLab test results are available on their web site. According to the NIH formula for converting from mice to humans the correct dose based upon the published studies is between 400mg and 4,000mg for a 70 kg man. The consensus amongst researchers seems to be that around 1,000mg is appropriate for a preventative dose and twice that to treat an existing condition.