1, water

Water is one of the most common substances on earth, is an important resource for the survival of all life, including inorganic chemistry, human beings, and is the most important component of living organisms.?

2, inorganic salt

While inorganic salt in the cells, the human body is very low, but the role is very large, if you pay attention to dietary diversity, eat less animal fats, more brown rice, corn and other coarse grains, do not consume too much refined flour, you can make the body's inorganic salts to maintain the normal level of the due.

3, sugar

Sugar plays an important role in the process of life activities, is the main source of energy needed to maintain life activities of all living things. The most important sugars in plants are starch and cellulose, and the most important polysaccharide in animal cells is glycogen.

4, protein

Protein is the material basis of life, is an organic macromolecule, is the composition of the cell's basic organic matter, is the main bearer of life activities. There is no life without proteins. Amino acids are the basic building blocks of proteins. It is a substance closely associated with life and with all forms of vital activities. Every cell and all the vital components in the organism have proteins involved.

5, fat

Fat exists in the human body and animal subcutaneous tissue and plant body, is a component of the organism and energy storage material. It is also the main component of cooking oil.

6, vitamins

Vitamins are a class of organic compounds necessary to maintain good health. These substances in the body can not be the raw material for the composition of body tissues, nor a source of energy, but a class of regulating substances, play an important role in the metabolism of substances.

Baidu Encyclopedia - Water

Baidu Encyclopedia - Inorganic Salts

Baidu Encyclopedia - Sugars

Baidu Encyclopedia - Proteins

Baidu Encyclopedia- Fats

Baidu Encyclopedia - Vitamins