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 content in the L-Malic Acid body a few, but indispensable. The chemical structure of various vitamins and nature although different, but they have a following in common:
(1) all the vitamins to vitamins (vitamin precursor) exists in the form of food in.
(2) the vitamin not a body tissue and cell components, it also won’t produce energy, it is mainly involved in the role of the adjustment of the body to metabolism.
(3) most of the vitamin, the body cannot synthesis or synthetic is enough, and can’t meet the need of the body, often have to get through the food.
(4) the human body of vitamin because of the small, often in demand, mg (mg) or micrograms (μ g) calculation, but once a lack of will trigger the corresponding vitamin deficiency, to human body health damage.
Vitamin and carbohydrate, fat and protein 3 big material is different, in natural food accounted for only rarely proportion, but necessary for human body. Some vitamins such as B6. K, etc as food additives can by animal gut bacteria synthesis, synthetic quantity can meet the needs of the animals. Animal cells can be transformed into tryptophan nicotinic acid (a kind of B vitamins), but need not apply cargoes; Vitamin C in addition to primates (including humans) and other than guinea pigs, and other animals can’s own synthesis. Plants and most microorganisms can their synthetic vitamins, need not supply by in vitro. Many vitamins are auxiliary base or coenzyme component parts.
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