Resveratrol (3,5,4'-trihydroxystilbene) is a natural phytophenol. It is found in many plants, but the highest concentration was detected in different grape-derived products, especially in red wine. The substance is also an active ingredient of some over-the-counter diet supplements. High resveratrol popularity is a consequence of wide biological properties. Numbers of epidemiological and experimental studies have proved a complex chemiopreventive activity of resveratrol against various cardio-vascular disorders and cancer. Furthermore, the compound possesses anti-inflammatory activity and positively regulates glucose level and metabolism of adipose tissue. Diet rich in resveratrol promotes longevity and attenuates neurodegenerative diseases.