Many people are exposed to lead (lead operations include lead mining, smelting, casting, battery manufacturing, canned food, welding, printing and so on. ), and lead compounds diffuse in the form of dust, which can enter the human body through the digestive tract and respiratory tract and endanger human health. It is an ideal method to drive lead by diet, and the following protective diets should be adopted: protein and foods containing methionine and cystine should be increased, because lead poisoning affects the anabolism of protein, and the total protein content decreases; Eat more foods with detoxification function, and eat more vitamin C, pectin, yogurt, garlic and so on. When vitamin C is synthesized with lead, it can produce nontoxic salt insoluble in water, which can be excreted in the body to achieve the purpose of detoxification. Pectin can inhibit the absorption of lead; Yogurt can stimulate gastrointestinal peristalsis, reduce the absorption of lead and accelerate the discharge of lead; Garlic (containing allicin) can combine with lead to form nontoxic compounds. In addition, there are mung beans, water chestnuts and kelp. It also has the effect of discharging lead. Eating foods rich in calcium and iron, such as shrimp skin, bean products, animal blood and Nostoc flagelliforme, can accelerate the metabolism of lead, reduce the accumulation of lead in the body and control the supply of fat. Lead is a fat-soluble substance, and the fat in the diet can promote the absorption of lead in the small intestine, so the supply of fat should be reduced. We should eat more foods containing vitamin B 1, vitamin B2 and folic acid to protect the nervous system and improve hematopoietic function.