Orange: Although the orange is nutritional, but it contains erythrophyll. If you  eat too much, it is easy to induce "the skin disease of erythrophyll", abdominal pain and diarrhea, or even bone diseases. So children shouldn't eat more than 4 oranges of medium size.

Bean: Beans contain a gene that can cause the goiter and spur the thyroxine to be removed from our body. As a result, there is a lack of thyroxine, and in order to adapt to the need, the body has to increase the volume of thyroid. Because the children in a growing and developing period are more vulnerable, the children should not  often eat many beans.

Spinach: Spinach contains a lot of oxalic acid which will become calcium oxalate and zinc oxalate which are not easy to be absorbed and then are dispatched from our body. oxalate and grass will generate zinc and difficult to absorb and emit in vitro. Children's growth and development requires a large amount of calcium and zinc, if the body lacks calcium and zinc, it doesn't  only lead to arrested development of bone and teeth, but it will also impact on intellectual development.

Egg: Egg is the food of relatively comprehensive nutritional components, but if you eat too many eggs, it will increase the volume of cholesterol, and it is easy to cause excess nutrients, lead to obesity, besides it can increase burden on stomach, liver and kidney which causes the dysfunction. Therefore, children should not eat more than three eggs every day.

Sunflower seed: There is unsaturated fatty in acidssunflower seeds. They will consume a large number of choline if the children eat too much, affecting the function of liver cells, and also causing the drying of the children because of the "liquid depletion ". 

Liver: liver contains a lot of cholesterol. If the children often eat it or eat too much which will rise in the level of cholesterol, it is easy to induce heart and brain vascular diseases in adulthood.

Ginseng: At present, there are many ginseng food in the market, such as ginseng candy, ginseng malted milk, ginseng milk powder, ginseng buscuit, ginseng royal jelly and so on. Ginseng has the role to promote the secretion of sex hormone.  If the children eat ginseng, it will lead to sexual, which affects the normal physical development seriously.

Salted fish: All kinds of salted fish contain a lot of dimethyl nitrite which enters the human body and will be transformed into highly carcinogenic Dimethylnitrosamine. Researches show that if one person eats the salted fish before10 years old, his risk of cancer is higher 30 times than the common people after he grows up. So, children should not often eat much salted fish.

Cans: The certain amount of food additives have been joined in canned food in the production process. Additives are of a little toxicity, which has little effect on adults but has great impact on the children  not only assessing damage to their health, but also likely to cause chronic poisoning. Therefore, children should not eat many cans.

Salt: Children should not eat more than five grams of salt a day. If they eat a lot of salt, it is very easy for them to cause hypertension, coronary heart disease, carcinoma ventriculi and so on.

Strong tea: It includes a lot of tannic acid which will generate iron tannate in the case of iron in the body. It is difficult to be absorbed into the body, and it is easy to cause the body in lack of iron. Lack of iron will not only bring  the anaemia to children, but it will also impact on intellectual development.

Saccharin: Currently, children eat sweet foods and beverages most of witch have been joined the saccharin to. The research shows that large consumption of saccharin will cause disease of blood, heart, lung, peripheral nerve and damage  the stomach, kidney, chole, bladder and other organs. Therefore, our country provides that saccharin can't be used in the food for children and patients.

Animal tallow: Children often eat or eat  much animal tallow, which will not only cause obesity, but will also affect the absorption of calcium. If the time lasts long, it is easy to cause the dificiency of the calcium and cause diseases. 

Jelly: Jelly is not made from sweetened fruit juice, but made from thickening agent, essence, sour agent, coloring agent, sweetener which have on nutrition value on human body but certain toxicity. To eat much or often will affect the children's growth and development and their intellectual health.

Bubble gum: Plasticizer in bubble gums is a bit toxic and their metabolite phenol is also harmful to human beings. Moreover, the way of children's eating bubble gums is not very healthy, and it is likely to cause gastrointestinal diseases.

Popcorn: Popcorn has high lead content. If the lead enters the human body, it will damage nerve, blood and digestive systems and hematopoiesis. As children has weak detoxifying function of lead, often eating or eat many popcorns is prone to chronic lead poisoning and causes phenomenons, such as loss of appetite, diarrhea, fantod, cyanotic gum and restructure of growth and development and so on.

Instant noodle: Instant noodle contains food colourants, antiseptic and so on which are harmful to the human body. Often eating or eating much will cause children's malnutrition and affects their growth and development and health.

Cola: Coke contains a certain amount of caffeine which has the role of exciting the central nervous system and has potential hazard to the human body. As various tissues and organs of children have not been perfect yet,  their resistance and detoxification function is very weak, and the disaster will be even greater, so the children do not drink much cola.

Roasted mutton: In the course of roasted and smoked food such as roasted mutton there will be carcinogens such as 20-aniline and 3.4-benzopyrene and so on. If the children often eat or eat much burned food, carcinogen will be saved in the body, which will bring cancer after they grow up.