The role of vitamin U includes the following aspects: 1. Prevention of gastric ulcer. Vitamin U can promote the repair of the human gastrointestinal mucosa and protect the gastric mucosa cells. It is commonly used in clinical practice to treat gastritis and gastric ulcers, as well as to reduce the chance of toxin absorption in the gastrointestinal tract and promote the discharge of metabolic waste. 2. Maintain liver function. Vitamin U can prevent excessive fat factor deposition in the liver, relieve the liver metabolic burden, prevent fatty liver, hepatitis and other diseases. 3, maintain the elasticity of blood vessels. Vitamin U enters the blood after digestion in the body, maintaining vascular security and restoring blood viscosity, relieving the deposition of fatty factors to avoid cardiovascular system diseases. 4, reduce blood lipids. Increase the concentration of high-density lipoprotein content, improve the transfer ability of fat to help metabolism, improve the basal metabolic rate to reduce blood lipids.