What is "resveratrol"

n. (context organic compound biochemistry English) A phenolic substance, ''3,5,4'-trihydroxystilbene'', a stilbenoid and phytoalexin, that is found in some fruits and nuts, and in red wine, and is reputed to have some beneficial properties for humans.

Resveratrol (3,5,4′-trihydroxy-trans-stilbene) is a stilbenoid, a type of natural phenol, and a phytoalexin produced naturally by several plants in response to injury or when the plant is under attack by pathogens such as bacteria or fungi. Food sources of resveratrol include the skin of grapes, blueberries, raspberries, mulberries, and senna.

There is no good evidence that consuming resveratrol-rich foods or taking resveratrol as a dietary supplement has any beneficial health effects in humans.