Blood consists of plasma, blood cells and so on, which contains thousands of red blood cells, white blood cells, platelets and various organic components. Protein, iron, copper, folic acid and vitamins have strong hematopoietic functions, and they are widely found in various foods. People can get the nutrition they need by ingesting these substances.

Milk, lean meat, mutton, eggs, fish and soybeans are rich in protein. After blood donation, more intake of these substances is beneficial to nutritional supplement.

Green leafy vegetables, fruits and viscera such as liver and kidney of animals are rich in folic acid and vitamin B 12. Therefore, we should pay attention to the intake of these foods after donating blood.

Lean meat, animal liver, fish, bean products, red dates, seaweed, etc. are rich in iron, especially animal blood, in which the iron absorption rate is above 22%. Animal blood is rich in resources, cheap and good, and it is a good product for enriching blood.