Vitamins are substances that our food contains. Human body needs them to work properly. Each vitamin has a special role, but in this article we want to look at vitamins from the point of their ability to dissolve in different substances. There are two types of vitamins: fat soluble and water soluble.
There are 13 vitamins in human body: 4 fat-soluble (A, D, E, and K) and 9 water-soluble (8 B vitamins and vitamin C).
Water-soluble vitamins can dissolve in water practically without difficulty. They are not stored in our organism getting through a bloodstream and that fact makes consistent daily taking in very important. Many water-soluble vitamins are produced by bacteria. These vitamins are vitamin C and the big group of B vitamins — B1 (thiamin), B2 (riboflavin), niacin, B6 (pyridoxine), folic acid, B12 biotin, and pantothenic acid.
Fat-soluble vitamins should be taken inside with lipids or fats, because they are absorbed by human organism with the help of fats. Fat-soluble vitamin regulation is of great significance in cystic fibrosis. Fat-soluble vitamins are stored in the fat tissues in human body and in a liver, until there is a need for them.
Fat-soluble vitamins stay stored in a human body for awhile — some stay for a few days, some for up to 6 months. Special carriers in a body take them to where they are needed.

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