A proprietary formulation of resveratrol, a polyphenolic phytoalexin derived from grapes and other food products with potential antioxidant, anti-obesity, antidiabetic and chemopreventive activities. Resveratrol may activate sirtuin subtype 1 (SIRT-1). SIRT1 activation has been reported to inhibit tumorigenesis and tumor cell proliferation. SIRT-1 is a member of the silent information regulator 2 (SIR2) (or sirtuin) family of enzymes that plays an important role in mitochondrial activity and acts as a protein deacetylase. SIRT1 appears to be involved in the regulation of numerous transcription factors such as Nf-kB and p53.