Peanut is rich in nutrition, and contains many vitamins, lecithin, protein amino acids, choline, oleic acid, stearic acid, cinnamic acid, etc. The heat generated is also much higher than that of meat, 1 time higher than that of milk and 4 times higher than that of eggs, so it is generally welcomed by people. Peanut can be used to treat cough with phlegm, deficiency of qi and blood, weakness of spleen and stomach, and play a role in prolonging life and resisting aging. Therefore, people call peanut "longevity fruit".