Dietary Supplement For Heart and Healthy Aging 40 mg Total Resveratrols Resveratrol is a compound produced by grapes and other plants for protection from environmental stresses. Recent studies have demonstrated that resveratrol activates SIRT I genes, which mimic the healthy aging benefits of caloric restriction. Source Naturals Resveratrol may support heart health by providing the antioxidant protection needed for healthy circulation, and by inhibiting inflammation messengers including NF kappa B.