At present, our country is rich in materials, and people's living standards have improved. Some people eat too much food, which leads to too many nutrients entering the body and many symptoms of affluence.
Which nutrients are suitable for humans or what humans need? And then we said.
Nutrients suitable for human beings or human needs refer to substances that are conducive to maintaining human normal physiological processes, growth and development, and physical health. The nutrients needed by human body are mainly protein, lipids, carbohydrates, dietary fiber (cellulose), vitamins, inorganic salts and water, and trace substances/elements.
1, protein's function and function: The basic building block of protein is amino acid, which is the main component of human tissues. The cells and tissues of human body are all composed of protein, and protein is the only source of nitrogen supply. Protein also participates in various forms of life activities, such as promoting the catalytic regulation of metabolic process, maintaining the hardness and elasticity of tissues, transporting small molecular ions and electrons, preventing epidemics, promoting cell repair and wound healing, and providing energy for human body. Insufficient intake of protein for a long time will lead to nutritional edema, and even lead to death.
2. Functions and functions of lipids: Lipids are the general names of fats, cholesterol, phospholipids, lipoproteins and glycolipids, which are insoluble in water and soluble in organic solvents such as ether, chloroform and acetone. Lipid is one of the main components of cells (cell membrane and biofilm), which stores energy and provides energy for human physiological functions, keeps warm and protects, acts as a solvent, participates in or regulates the metabolism of the body, and promotes the digestion and absorption of fat-soluble vitamins.