Resveratrol is a type of natural phenol that is produced by plants when they are under attack. Bacteria or fungi when attacks any plant cause them to produce Resveratrol. The other natural resources of Resveratrol are blueberries and raspberries. It is also used as dietary supplement. However, there are no proven studies in this regard which shows that the life expectancy can be increased by using Resveratrol. There are several health effects as of Resveratrol which cannot be negated.