The so-called junk food, one kind refers to the food without other nutrients except calories, and the other kind refers to the food that provides more than the human body's needs and causes redundant ingredients. In China, the consumption group of junk food is very large: teenagers are the main consumers of foreign junk food such as hamburgers, potato chips and fried chicken, while middle-aged and elderly people are the main consumers of traditional junk food such as fried dough sticks and pickles. Experts pointed out that fried and grilled foods contain a lot of carcinogens, pickled and puffed foods contain a lot of harmful chemical components such as nitrite, and some foods have added excessive artificial additives. Junk food has caused great harm to human health, but many people don't realize that its temptation is hard for many people to resist. Junk food tastes good and can stimulate people's taste. In contrast, healthy food is nutritious but rarely delicious. The various nutrients needed by the human body are quantitative. If the intake of nutrients exceeds the normal demand of the human body, it will bring a burden to the body, cause nutrient accumulation, and bring obesity, diabetes, hypertension, hyperlipidemia, heart disease and other diseases. Nothing in daily food is full of nutrients. No matter what kind of food, single and large consumption will lead to overnutrition or imbalance, not to mention those recognized junk food. Wang Shunhua, a nutritionist at the Third Hospital of Medical Sciences, reminded that many problems are caused by eating, and people should develop the habit of eating a light diet and eat more vegetables, fruits and whole grains. In 2006, the World Health Organization announced the top ten "junk foods": fried foods, pickled foods, processed meat foods (floss, sausages, etc.), biscuits (excluding low-temperature baking and graham crackers), soft drinks and cola drinks, convenience foods (instant noodles, puffed foods, etc.), canned foods, preserved preserved fruits with preserved plum, frozen desserts, etc. The main hazards of fried foods are: 1, fried starch leads to cardiovascular diseases; 2, containing carcinogens; 3, the destruction of vitamins, protein degeneration. The main hazards of pickled foods are: 1, leading to hypertension and excessive renal burden, leading to nasopharyngeal carcinoma; 2, affect the mucosal system (harmful to the stomach); 3, easy to get ulcers and inflammation. The main hazards of processed meat food (dried meat, floss, sausage, etc.) are: 1, which contains one of the three carcinogens: nitrite (antiseptic and color development); 2, containing a large number of preservatives, increasing the burden on the liver. The main hazards of biscuit food (excluding low-temperature baking and graham crackers) are: 1, too much edible essence and pigment will burden the liver function; 2, serious damage to vitamins; 3. Too many calories and low nutrients. The main hazards of soft drinks and cola foods are: 1, containing phosphoric acid and carbonic acid, which will take away a lot of calcium in the body; 2, the sugar content is too high, and there is a feeling of fullness after drinking, which affects dinner. The main hazards of convenience foods (mainly instant noodles and puffed foods) are: 1, high salt content, preservatives and flavors, and liver damage; 2, only calories, no nutrition. The main hazards of canned foods (including fish and fruits) are: 1, destroying vitamins and denaturing protein; 2. Too many calories and low nutrients. The main hazards of preserved food (preserved fruit) are: 1, nitrite, one of the three carcinogens; 2, the salt is too high, containing preservatives and flavors, which is harmful to the liver. The main hazards of frozen dessert foods (ice cream, popsicles and all kinds of ice cream) are: 1, containing cream can easily cause obesity; 2. Too high sugar content affects dinner. The main hazards of barbecue food are: 1, containing a large number of "triphenyltetrapropyl pyridine" (the first of the three carcinogens); 2. 1 roasted chicken leg = toxicity of 60 cigarettes; 3. It leads to carbonization and degeneration of protein, which increases the burden on kidney and liver. According to Fu Jinru, chairman of the Nutrition Society of this city, foods that only provide some calories and have no other nutrients, or foods with nutrients that exceed the human body's needs and eventually become redundant in the human body, are usually called junk food. Even junk food is not inedible. The key is to know how to balance your nutrition and calories, and know how to balance your diet, so that you can reduce or avoid the harm of junk food to you. Eat more healthy and hygienic foods such as vegetables, fruits, beans and milk, and ensure a diversified diet. The World's Top Ten Junk Foods The World's Top Ten Junk Foods announced by the World Health Organization (WHO) are the chief culprit of our obesity and a major factor causing health problems. Please stay away from junk food for your health and body. 1. Fried food 1, culprit of cardiovascular disease (fried starch) 2. Containing carcinogens 3. Destroying vitamins and denaturing protein 2. Pickled food 1, leading to hypertension and excessive kidney burden. Causes nasopharyngeal carcinoma 2. Affects the mucosal system (harmful to the stomach and intestines) 3. It is prone to ulcers and inflammation 3. Processed meat food (dried meat, floss, sausage, etc.) 1, contains one of the three carcinogens: nitrite (antiseptic and chromogenic effect) 2. Contains a lot of preservatives (aggravating the burden on the liver) 4. Biscuits (excluding low-temperature baking and graham crackers)/kloc. Too much edible essence and pigment (which is a burden to the liver function) 2. It seriously damages vitamin 3, has too many calories, and has low nutritional content 5. Soft drinks and cola foods 1 contain phosphoric acid and carbonic acid, which will take away a lot of calcium from the body 2. Too high sugar content will make you feel full after drinking, which will affect the dinner 6. Convenience foods (mainly instant noodles and puffed foods) 1. Contains preservatives and essence (harmful to liver). 2. Only calories, no nutrition. 7. Canned foods (including fish and fruits) 1, destroy vitamins, and denature protein. 2. Too many calories, low nutritional content. 8. Preserved plum foods (preserved fruits) 1, containing one of the three carcinogens: nitrite. Contains preservatives and flavors (harmful to the liver) IX. Frozen dessert foods (ice cream, popsicles and all kinds of ice cream) 1. Containing cream can easily cause obesity. 2. Too high sugar content affects dinner. X. Barbecue foods 1. Contains a lot of "triphenyltetrapyrrole" (the first of the three carcinogens). 2. 1.