Vitamin

Vitamins are biological growth and metabolism of the necessary trace of organic materials. Divided into fat-soluble vitamins and water-soluble vitamin two kinds. The former includes vitamin A, vitamin D, vitamin E, vitamin K, etc, and the latter has A B vitamins and vitamin C. People and animals cannot lack of vitamin normal growth, and Folic Acid develop a specific disease, the so-called vitamin deficiency.
Vitamins are people and animals to maintain normal physiological function and required for a class of food from trace organic material, and in the human growth and metabolism, development process played an important role. Vitamin a and vitamin, popular terms, that is life support material, it is the maintenance activities must be a human body life of organic material, is also keep the health of human body important active material. Vitamins are human and animal nutrition, growth necessary some a small amount of organic compounds to the body metabolism, growth, development, health has an extremely important role. If long-term lack of a vitamin, can cause physical dysfunction and produce a disease. In general, the food to obtain.
Vitamins are organic compounds necessary in metabolism. The human body is a complex chemical plants, constantly with all kinds of biochemical reactions. The reaction Biotin and enzymes catalysis has close relationship. To produce the enzyme activity, must have a coenzyme to attend. Many vitamin is known of enzyme or is the composition of the coenzyme coenzyme molecules. Water-soluble vitamin does not need to digest, directly from the intestinal absorption, through the circulation to the organization of the body's needs, the extra parts are of urine, in store inside body very little. Fat-soluble vitamins dissolved in oil, the bile emulsification, in the small intestinal absorption, by lymph circulation system into the organs in the body. The body can store a lot fat-soluble vitamins.