Bad liver can be regulated by supplementing vitamin b, vitamin C, vitamin K, and vitamin E. 1. b vitamins: b vitamins, such as vitamin B1, vitamin B2, vitamin B6, etc., can accelerate the metabolism of substances, converted into energy, to help repair the liver function, and to prevent hepatic steatosis, thus playing a role in protecting the liver. 2. Vitamin C: Vitamin C can promote the regeneration of cells in the body, and has a more positive effect on the repair of liver cell membranes. 3. Vitamin K: Vitamin K is involved in the operation and generation of coagulation factors in dryness, and supplementation of vitamin K can effectively prevent symptoms such as bleeding of the oral mucosa, gastrointestinal mucosa and gums caused by bad liver. 4. Vitamin E: Vitamin E has an antioxidant effect, which has a positive significance in promoting the repair of liver cells. Drugs should be taken under the guidance of a professional doctor, combined with personal choice, to avoid blind use of drugs, liver function is not good patients, should go to the hospital in a timely manner for examination, as soon as possible to determine the cause of the disease, and targeted treatment, to avoid delayed aggravation of the symptoms of the disease, resulting in a serious impact.