① Candy, drinks containing coffee; added artificial coloring, preservatives can have an effect on children’s nerve conduction, leading to impulsivity and inattention. ② When the intake of animal protein is too much, exceeding the normal requirement of 2-3g/kg, its decomposition metabolite C containing ammonia compounds will cause irritability and hyperactivity. ③Insufficient intake of calcium and excessive intake of aluminum are related to the occurrence of ADHD. Although apples, oranges, apricots and tomatoes have high nutritional value, they contain many methyl salicylates, which can affect neurotransmission information and aggravate hyperactivity. ⑤ Excessive consumption of noodles, pastries, donkey meat, pork pine, duck paws, fish slices, tamari, dried scallops, cheese, bean curd, tofu skin, pumpkin seed kernels, etc., which are high in tyrosine or tryptophan, can lead to hyperactivity. (6) food contaminated with lead and high lead content, such as shellfish, big red shrimp, sunflower, lettuce, kale, eggs, popcorn … will affect the visual-motor, memory sensory, image thinking and behavioral changes; eat less food containing aluminum, such as doughnuts, because the production of alum added, its chemical composition is potassium aluminum sulfate, excessive intake can lead to mental retardation, memory loss, and induce hyperactivity. In conclusion, reasonable diet is an important treatment measure for ADHD. Children should be helped to overcome the habits of picky and partial eating, to combine coarse and fine grains, to match meat, vegetables and fruits, to pay attention to the diversity of diet; to reduce the intake of high sugar and high protein; to eat more fresh fruits and green leafy vegetables; to eat less pepper, chili and other stimulating condiments and food additives; to replenish enough water every day, not to replace water with drinks is the best strategy to prevent or alleviate this disease.