Do take caution, though, about online recommendations for new medications or supplements that have not been adequately tested in humans. Our scientific history is littered with drugs and supplements that seem fine in models using mice or other non-humans, but then don't have the desired effects in humans. We also have to be careful about using refined specific molecules. It's very healthy to eat grapes, peanuts, and other sources of resveratrol, but we don't actually have large studies yet to show safety for taking refined resveratrol.
http://lpi.oregonstate.edu/infocente...s/resveratrol/
http://www.mskcc.org/mskcc/html/69354.cfm
We have excellent data to show that a diet high in fruits and vegetables, especially coupled with lifestyle rich in exercise, is healthy for us. My personal preference is to eat the yummy fruits and veggies and to avoid the manufactured or refined products. More research may show that refined resveratrol might be good for humans, but given the history of similar products, this seems unlikely.