Mineral vegetables contain calcium, phosphorus, iron, potassium, sodium, magnesium and other minerals, of which potassium content is the highest, and calcium, phosphorus and iron are also very rich. 0.4% ~ 2.3% of leafy vegetables, 0.6% ~ 1.5% of root vegetables, 0.3% ~ 1.3% of onion and garlic, 0.2% ~ 0.7% of melons, 0.4% ~ 0.5% of solanaceous fruits and 0.6% of fresh beans. Minerals in vegetables not only have the function of regulating human physiological function, but also are important components of various tissues of human body. Calcium, iron and potassium are basic substances in human physiology, which can neutralize acidic substances in the body and maintain acid-base balance in the body.