Resveratrol: You don’t always get what you pay for

Resveratrol supplements have been popular since 2006, when studies in animals showed “life-extending” and “endurance-enhancing” effects. Similar evidence doesn’t exist for people, which is the reason there are few posts about it on this site.’s most recent tests revealed that 2 resveratrol supplements provided only 43% and 87%, respectively, of their listed amounts of resveratrol.

These products were among the most expensive supplements of the 10 products selected for review.

None of the resveratrol products were contaminated with lead or cadmium, which can occur in plant-based supplements, and all tablets were able to properly break apart in solution.

The bottom line?

That’s correct, 20% of the products were mislabeled.

Based on a daily dose of 400 mg of resveratrol, the cost would range from $0.60 to $11.04 per day!

You must subscribe to ConsumerLab in order to get the full test results for resveratrol supplements.

A list of the brands of resveratrol tested is here.

12/21/10 20:05 JR

Hi, I’m JR

John Russo, Jr., PharmD, is president of The MedCom Resource, Inc. Previously, he was senior vice president of medical communications at, a complementary and alternative medicine website.