Phillyrin, an active ingredient found in many medicinal plants and certain functional foods, elicits anti-obesity and anti-inflammatory properties in vivo. Phillyrin is one of the main chemical constituents of Forsythia suspensa (Thunb.), which has shown to be an important traditional Chinese medicine. Phillyrin, has being shown to possess various bioactivities, including anti-inflammatory, anti-oxidant, and antiviral activities. It has being reported that Phillyrin attenuates high glucose-induced lipid accumulation in human HepG2 hepatocytes through the activation of LKB1/AMP-activated protein kinase-dependent signalling.