(LATimes) - Drinkers the world over have been thrilled by the notion that resveratrol, a chemical found in red wine, might be some kind of anti-aging powerhouse. The supposed wonder substance can make perilously chubby lab rats live as long as their slim counterparts, protect them from cancers and reduce their risk of dying from a high-calorie diet. It can lengthen the life of certain fish while warding off brain decay and improving the creatures' swimming chops.