This sounds an awful lot like the craze about how cranberry juice helps prevent urinary tract infections that went around a few years ago. There's definite science behind it, but women thought that they could drink a glass of Ocean Spray every day to get a benefit. Turns out you had to drink some amount of straight cranberry juice, or something like 1-2 gallons a day of typical cranberry juice.

Just looking quickly at the supplements and the fact that the mice were given 40mg doses, I'd have to think that the human dose would be somewhere in the thousands of mg to have the same benefit, i.e. 50 or so pills a day.

But hey--this'll be a big boon for the supplement makers... they'll be able to sell lots of cheap product at ineffective doses because someone read that resveratrol was good for them.