Vitamin category names found and another source said

Fat-soluble anti-dry eye vitamins (vitamin A), also known as beauty vitamins by Elmer McCollum and M. Davis in 1912 to 1914 is found between. Is not a single compound, but a series of derivatives of retinol (retinol has also been translated as vitamin A alcohol, pine sesame oil), another name for the anti-multi-vitamins in dry eye present in the cod liver oil, green vegetables

Water-soluble thiamine (vitamin B1) by Casimir Funk in 1912 • was found (some say 1911). In the biological body is usually Thiamine pyrophosphate (TPP) of the form. Multi-exist in yeast, cereals, liver, soybeans, meat

Water-soluble riboflavin (vitamin B2) by DT Smith and EG Hendrick was discovered in 1926. Also known as multi-vitamin G present in the yeast, liver, vegetables, eggs

Water-soluble niacin (vitamin B3) from the Conrad Elvehjem discovered in 1937. Also known as vitamin P, vitamin PP, including niacin (nicotinic acid) and nicotinamide (nicotinamide) two kinds of substances, belong to pyridine derivatives. Multi-exist in the nicotinic acid, nicotine acid, yeast, cereals, liver, rice bran

Water-soluble pantothenic acid (Vitamin B5) by Roger Williams was discovered in 1933. Also known as over the multi-acid found in yeast, cereals, liver, vegetables

Water-soluble alcohols Pyridoxine (vitamin B6) by Paul Gyorgy in 1934 was discovered. Including pyridoxine, pyridoxal and pyridoxamine more present in the yeast, cereals, liver, eggs, milk products

Water-soluble biotin (vitamin B7) is also known as vitamin H or coenzyme R multi-exist in yeast, liver, cereals

Water-soluble folic acid (vitamin B9) is also known as pteroylglutamic acid, glutamic acid, butterflies acid mono-glutamate, vitamin M or leaf Seita found in vegetables, leaves, liver

Water-soluble Cyanocobalamin (Vitamin B12) by Karl Folkers, and Alexander Todd in 1948 was found. Is also known as cyanocobalamin or [[coenzyme B12]] more than exist in the liver, fish, meat, eggs

Water-soluble choline by Maurice Gobley was discovered in 1850. Multi-family, one of vitamin B found in liver, egg yolk, dairy products, soybeans

Water-soluble inositol ring has six alcohol, vitamin Bh more present in the heart, meat

Water-soluble ascorbic acid (vitamin C) • by James Lind discovered in 1747. Also known as ascorbic acid found in many fresh vegetables, fruits,

Fat-soluble calciferol (vitamin D) by Edward Mellanby discovered in 1922. Also known as calciferol, anti-rickets vitamin, mainly alcohol and vitamin D2 or vitamin D3 or calcium ergot cholecalciferol. This is the only one of the body may be a small amount of synthetic multi-vitamin found in cod liver oil, egg yolks, dairy products, yeast

Fat-soluble tocopherol (vitamin E) by Herbert Evans and Katherine Bishop discovered in 1922. There are α, β, γ, δ exists in more than four kinds of eggs, liver, fish, vegetable oil

Fat-soluble Naphthoquinone (Vitamin K) by Henrik Dam discovered in 1929. Is a series of naphthoquinone derivatives collectively, mainly from plants of natural vitamin K1, vitamin K2 from the animal and synthetic vitamin K3 and vitamin K4. Also known as the clotting vitamin found in more than spinach, alfalfa, cabbage, liver

Characterized by the definition of vitamins required to meet the four characteristics of vitamin can only be called the essential vitamins:

Exogenous: the body's own non-synthetic (synthesis of vitamin D the body can be a small amount, but because of the more important, it is still as essential vitamins), need food supplements;

Trace of: the human body needs a very small number, but it can play a significant role;

Regulatory: vitamin must be able to regulate body metabolism or energy transformation;

Vitamin-specific: the lack of certain vitamins, the people will show a specific condition.

According to these four characteristics, the human body needs a total of 13 kinds of vitamins, which is commonly referred to as 13 kinds of vitamins need