Isoquercitrin, or isoquercetin, is a naturally occurring flavonoid in various plants, including fruits, vegetables, and herbs. It is known for its antioxidant properties. Isoquercitrin has been studied for its potential health benefits, which include anti-inflammatory, anti-cancer, and anti-allergic activities. In addition, Isoquercitrin may also contribute to cardiovascular health by improving blood vessel function thereby reducing the risk of heart disease. Additionally, Isoquercitrin is investigated for its potential to enhance endurance and exercise performance by improving energy utilization and reducing inflammation. With its wide range of biological activities, Isoquercitrin is of interest in nutritional science and medical research as a component of a healthy diet and a potential therapeutic agent.