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 needs, resulting in redundant ingredients. In China, the consumers of junk food are 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 are added with excessive artificial additives. Junk food is very harmful to human health, but many people don't realize that it is irresistible to many people. Junk food tastes good and can stimulate people's taste. In contrast, healthy food is rich in nutrition, but rarely delicious.
The various nutrients needed by the human body are quantitative. If the intake of nutrients exceeds the normal demand of 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 completely nutritious. No matter what kind of food, a single large amount of consumption will lead to overnutrition or imbalance, not to mention those recognized junk food. Wang Shunhua, a nutritionist in the Third Hospital of Medical University, reminded that many problems are caused by diet. 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 food": fried food, pickled food, processed meat food (meat floss, sausage, etc. ), biscuits (excluding low-temperature baking and graham crackers), soft drinks and cola drinks, convenience foods (instant noodles, puffed foods, etc.). ), canned food, preserved plum, frozen dessert, etc.
Do you eat too much junk food in your life? Fried food is very harmful, and the harm of preservatives is countless. Let's take a look at those foods that are harmful to our health:
One: processed meat food, which is considered to contain nitrite, may lead to the potential risk of cancer. In addition, due to the absolute sky-high price of processed food, preservatives, color enhancers and color retention agents are added.
Two: fried food, high in calories and containing high-quality oxidizing substances, will lead to obesity if people who often take fried food as their staple food. Moreover, a large number of high-concentration acidic substances produced in the frying process will make the incidence of human cancer much higher than that of people who don't eat fried food or rarely eat fried food.
3. Pickled food needs a lot of salt in the process of making pickled food, which leads to excessive sodium content in food and increases the burden on kidneys who often eat pickled food. In addition, due to the high concentration of salt, gastrointestinal mucosa will be seriously damaged.
Four: Canned food, canned food, whether it is canned fruit or meat food, the nutrition inside has been greatly destroyed, especially when all kinds of vitamins are almost destroyed, the protein in canned food has usually deteriorated, and its nutritional value is greatly reduced.
Five: Rapeseed oil, after analysis by famous foreign health research institutions, it is pointed out that Chinese people like cooking food with high-temperature edible oil very much. Usually, cooking oil will release butadiene smoke under the catalysis of high temperature, and long-term inhalation will change people's genetic immunity. When cooking, rapeseed oil releases 22 times more butadiene than peanut oil.
Six: there are many kinds of biscuits and biscuits, which taste crisp and sweet, but the biscuits are very high in calories. It not only brings convenience to people, but also does some harm to human health. Cookies contain a lot of sugar, too high sugar intake leads to insufficient intake of raw su and decreased immune function.
Seven: drink less coke. Carbonated drinks have a unique taste and attract many young people. But long-term drinking can easily lead to obesity. Moreover, a large number of artificial sweeteners are added to carbonated drinks. Excessive intake will affect the normal secretion of intestinal digestive enzymes, and excessive drinking will leave beneficial bacteria in the human body, thus destroying the digestive system.
Eight: Candied food, candied food is deeply loved by consumers because of its bright color and sweet taste, but this kind of food also has an indifferent impact on people's health. In the process of making candied fruit, in order to make the product bright and beautiful, it is often necessary to carry out running water treatment before making it to prevent oxidation discoloration and sugar seepage of Zeng Jing fruit.
Nine: Convenience foods, instant noodles and other foods contain a lot of preservatives and flavors, which will increase the burden on the liver. It may cause the lack of some nutrients, contain a lot of high quality, and are easy to be oxidized and rancid. If ingested into the human body, it will have a certain destructive effect on the important enzyme system of the human body.
Ten: frozen food, frozen dessert food includes ice cream, etc. These foods are very harmful to the body, because high cream leads to obesity; High sugar content, many people eat cream on an empty stomach will cause acid reflux.
Even junk food is not inedible. The key is to know how to balance nutrition and calories and how to balance diet, so as to reduce or avoid the harm of junk food to you. Eat more healthy foods such as vegetables, fruits, beans and milk to ensure a diversified diet.