Vitamins are organic compounds that the organism needs in certain quantities to survive. Organic compounds usually contain carbon, and when the organism can not manufacture enough organic chemicals in the body in small amounts enough to survive. Needs to be obtained from food, these compounds are commonly called vitamins.
Vitamins vary among organisms. For example, only human beings need different vitamin C, and there are currently only thirteen species of organisms. The term vitamin does not refer to a specific chemical compound containing a particular chemical structure. The vitamin into a group of compounds that enter with each other under a specific classification usually depends on its biological and chemical activity, called compounds that fall under the classification of vitamin called Vittamar.
Vitamins work in the body on different vital functions depending on their chemical composition, some vitamins regulate the growth of cells in the body and some work in the metabolism of minerals, while some other vitamins, such as vitamin B, which is the most multi-vitamin helps to help enzymes in stimulating metabolism Some are for example in the manufacture of fatty acids.
In humans, as we said previously, thirteen kinds of vitamins so far, and these vitamins are classified into two types, the first is the type that dissolves in fat and the second is dissolved in water, there are in the human body four vitamins that melt in fat are: A, D, E, The vitamins that dissolve in the fat are absorbed in the intestine. The water soluble vitamins dissolve in water in the body so they are quicker to get out of the body than those that dissolve in fat, as they come out with various excretions of the body quickly and urine.
The lack of vitamins in the body from the level that the body needs to many different diseases, which vary in degree of difficulty according to the function of vitamin, causing vitamin A deficiency to the civility is the inability to see things clearly at night, for example, and vitamin B12 causes lack of poverty Blood, and vitamin C is caused by the weakness of the capillaries, which causes bleeding in the gums and the weakness of the body in general and may lead to death as well, but osteoporosis is one of the diseases caused by vitamin D deficiency, which leads to a lack of calcium in the body.