1. Oranges Although oranges are rich in nutrients, but contains lutein, eat too much, easy to produce “lutein skin disease”, abdominal pain and diarrhea, and even cause bone disease. Therefore, children should not eat more than 4 medium-sized oranges a day. 2, spinach spinach contains a lot of oxalic acid, oxalic acid in the body to meet calcium and zinc will generate calcium oxalate and zinc oxalate, not easily absorbed and excreted. Children’s growth and development need a lot of calcium and zinc, if the body lacks calcium and zinc, not only can lead to bone and tooth dysplasia, but also affect the intellectual development. 3, eggs Although eggs are relatively comprehensive food, but if you eat too much, it will increase the cholesterol content in the body, which can easily cause excess nutrition, leading to obesity, but also increase the burden on the gastrointestinal, liver and kidney, causing dysfunction. Therefore, children should not eat more than 3 eggs per day 4, strong tea strong tea contains a lot of tannic acid, tannic acid in the body when iron will generate iron tannate, it is difficult to be absorbed by the body, easy to cause iron deficiency in the body. Children lack of iron will not only occur anemia, but also affect the intellectual development. 5, jelly jelly is not made of fruit juice with sugar, but with thickeners, flavors, acidulants, coloring agents, sweeteners formulated, these substances have no nutritional value to the human body, but there is a certain toxicity, eat more or often eat will affect the growth and development of children and intellectual health. 6, salted fish all kinds of salted fish contain a large number of dimethyl nitrite, this material into the body, will be converted into carcinogenic dimethyl nitrosamines. Studies have shown that before the age of 10 years old often eat salted fish, the risk of cancer in adulthood is 30 times higher than the average person. Therefore, children should not eat a lot of salted fish. 7, bubble gum bubble gum in the plasticizer contains slightly toxic, its metabolites phenol is also harmful to humans. Moreover, children eat bubble gum method is very unhygienic, easy to cause gastrointestinal diseases. 8, saccharin Currently. Children eat sweetened food and drinks, many added saccharin. According to research, large amounts of saccharin consumption can cause blood, heart, lung, peripheral nerve disease, damage to the stomach, kidneys, stretch, bladder and other organs. Therefore, China stipulates that saccharin should not be used in the food of patients and children. 9, beans beans contain a factor that can cause goiter, can promote the elimination of thyroxine, the result is a lack of thyroxine in the body, the body to adapt to this need to increase the size of the thyroid gland. Children are in the growth and development date more vulnerable, so children should not often eat more bean food. 10, ginseng At present, there are many ginseng foods on the market, such as ginseng candy, ginseng cream of wheat, ginseng milk powder, ginseng cookies and ginseng royal jelly and so on. Ginseng has a role in promoting the secretion of sex hormones, children consuming ginseng can lead to precocious puberty, seriously affecting the normal development of the body. 11, canned canned food in the production process are added to a certain amount of food additives, additives have a trace of toxicity, the impact on adults is not significant, but the development of iron children have a great impact, not only to assess the damage to health, and easy to cause chronic poisoning, so children should not eat more canned food. 12, popcorn popcorn contains high levels of lead, lead into the body pat damage to the nervous, digestive and hematopoietic functions. Children’s lead detoxification function is weak, often eat more popcorn is very susceptible to chronic lead poisoning, resulting in decreased appetite, diarrhea, irritability, purple gums and growth and development reorganization and other phenomena. 13, instant noodles instant noodles contain food coloring and preservatives that are detrimental to the human body, often eaten or eat more easily cause nutritional disorders in children, affecting growth and development and health. 14, sunflower seeds sunflower seeds contain unsaturated fatty acids, children eat more will consume a lot of choline inside, affecting the function of liver cells, but also can cause children’s dryness caused by “Jin deficiency”. Caffeine has an excitatory effect on the central nervous system and is potentially harmful to the human body. As children’s tissues and organs are not yet well developed, resistance and detoxification function is weak, the harm will be greater, so children should not drink more cola drinks. 16, animal fat children often eat or eat more animal fat, will not only cause obesity, but also affect the absorption and utilization of calcium, which can easily cause calcium deficiency and cause disease. 17, grilled lamb skewers lamb skewers and other fire-grilled, smoked food, in the process of smoking will produce 20-aniline and 3.4 benzopyrene and other strong carcinogens, children often eat or eat more of these coked food, carcinogens can accumulate in the body and make adults prone to cancer. 18.Chocolate When children consume too much chocolate, the central nervous system will be in an abnormal state of excitement, resulting in anxiety, muscle twitching, rapid heartbeat and appetite. 19.Salt Children should not exceed 5 grams of salt per day, and if they consume a lot of salt, they will be prone to hypertension, coronary heart disease, stomach cancer and other diseases in adulthood. 20, pig liver Pig liver contains a lot of cholesterol, children often eat or eat a lot of pig liver will make the body cholesterol levels rise, adults are prone to induce cardiovascular disease.