Protein: (10~15) is the material basis of life. Without protein, there would be no life.
Protein is the only source of nitrogen for the human body. Protein composition: carbon, hydrogen, oxygen, nitrogen, sulfur
Protein classification:
Complete protein: contains a complete range of essential amino acids in sufficient quantity and appropriate proportions, which can not only maintain the health of adults health and promote children's growth and development. Fish, chicken, eggs, milk, and soybeans
Semi-complete protein: a complete range of essential amino acids, some of which are insufficient in quantity and inappropriate in proportion. They can maintain life but cannot promote growth. Cereals and potatoes
Incomplete proteins: Incomplete types of essential amino acids cannot sustain life or promote growth and development. Vegetables and fruits
Amino acids are the basic units of protein.
Essential amino acids: Amino acids that cannot be synthesized in the body or are not synthesized fast enough and must be supplied by food
Non-essential amino acids: can be synthesized in the body, and it is not a problem if they are lacking in food
>Semi-essential amino acids: cysteine, tyrosine
Eggs, milk, fish, meat, soybeans, high-quality protein
The amino acid composition of egg protein and human protein The amino acid pattern is the closest, refer to protein
Physiological functions of protein:
1. Constitute and repair body tissues
2. Regulate physiological functions
3. Supply energy
4. Immunize the body
5. Detoxify the body
6. Others: genetic material, water and salt metabolism, acid and alkali Balance and transport nutrients
Protein deficiency:
1. Low immunity
2. Edema
3. Stunted growth in children, Rickets, mental retardation
4. Thinness
5. Aging, hair loss, skin laxity
6. Osteoporosis
7. Fat lines appear on the body?
8. Easily fatigued and anemic
9. Cholesterol deposition in blood vessels
10. Increased risk of diabetes (reduced insulin secretion)
11. Wounds are not easy to heal and nails are easy to break
The three principles of protein complementation:
1. The farther away the biological species of food is, the better
2. The more types of combinations, the better
3. The closer the time of consumption, the better, and it is best to eat them at the same time
Food sources of protein:
Plant-based protein: beans
Animal-based protein: eggs, milk, meat