Vitamin is a large family, there is now aware of dozens of vitamins, fat-soluble and can be broadly classified into two major categories of water-soluble. The former includes vitamins A, D, E, K, the latter category, including vitamin B group and vitamin C, and many "vitamin." 

  Now that the medical vitamin are: 

  Fat-soluble vitamins 

   Vitamin A: maintain normal vision, prevention Yemang Zheng; health maintenance organizations epithelial cells, promote growth and development, increase the resistance to infectious diseases, prevention and treatment of dry eye. 

   Vitamin D: regulating the body's metabolism of calcium and phosphorus, to promote absorption and utilization, promoting bone growth. 

   Vitamin E: to maintain the normal reproductive capacity and normal muscle metabolism and blood vessels to maintain the central nervous system integrity. 

   Vitamin K: to stop bleeding. It is not only the major components of prothrombin, but also the liver to manufacture prothrombin. Vitamin K deficiency in children

Water-soluble vitamins 

   Vitamin B1: to maintain circulation, digestion, normal nerve and muscle function, adjusting the functions of the gastrointestinal tract; constitute decarboxylase of coenzyme, to participate in sugar metabolism; can prevent the disease beriberi. 

   Vitamin B2: called riboflavin. Code-nuclear in many important is the composition of coenzymes, these enzymes in the body metabolism process of transfer of hydrogen, or protein, sugar, fatty acid metabolism and energy use and composition of the necessary material. Can promote the growth and development, the protection of the eyes, skin health. 

   Pantothenic acid (Vitamin B5): anti-stress, anti-cold, anti-infection and prevent the toxicity of certain antibiotics, after elimination of abdominal distention. 

   Vitamin B6: the protein plays an important role in metabolism. Treatment of neurasthenia, dizziness, atherosclerosis, and so on. 

   Vitamin B12: anti-fat liver, vitamin A in the liver for storage in the promotion of development and maturation and metabolism; treatment of malignant anemia. 

   Vitamin B13 (lactic acid-).