Ellagic acid is a polyphenolic compound extracted from pomegranate peel. Due to its excellent antioxidant properties, it has been used as a food antioxidant and is an important food additive. Research reports indicate that ellagic acid has antimutagenic properties and can inhibit the proliferation of cancer cells, making it widely used in the prevention and treatment of colon cancer, esophageal cancer, liver cancer, lung cancer, as well as tongue and skin tumors. Additionally, it can enhance the human immune system and has effects such as lowering blood pressure and providing sedation.