Workers working in high temperature environment: due to a lot of sweating, steel and potassium are lost in the body. In addition to supplementing enough water and salt, it is best to eat more foods rich in potassium, such as soybeans, mung beans, mung beans, potatoes, spinach, persimmons and bananas. In high temperature environment, the consumption of vitamins in human body increases, and most water-soluble vitamins can be lost from sweat, among which vitamin C is lost more, so we should eat more green leafy vegetables, dates and citrus fruits.