Fig. 2From: Nutritional immunology: function of natural killer cells and their modulation by resveratrol for cancer prevention and treatmentThe parent compound of resveratrol is a trihydroxylated stilbene (a). Resveratrol exists in two isomeric forms, cis and trans (b). Its natural occurring glycosidic form is piceid (c) with a glucose molecule linked via a 3-O-β-D-glycosidic bond to cis- or trans-resveratrolBack to article page