Author(s): Sweta Goyal and Tarvinder Jeet Kaur

Abstract: Many researchers have reviewed the involvement of free radicals in the development of life style diseases like diabetes, cancer, cardiovascular diseases, cataract, ageing, neurodegenerative diseases etc. Antioxidant plays an important role in preventing these degenerative diseases by scavenging free radicals. Antioxidant from exogenous sources are necessary to have as endogenous antioxidant defenses like superoxide dismutases, metal binding protein, H₂O₂ removing enzymes are inadequate to prevent these diseases. Considering all this, the review article presents the research conducted by various researchers on dietary sources of antioxidants and their benefits in preventing life style diseases.