At the "junk food" people will immediately think of hamburgers, instant noodles, in fact, from the nutrient point of view, chicken burger can not be called junk food, its protein content is high, but also contains a certain amount of B vitamins. The real junk food generally contains three meanings: poorer nutritional quality; easy to make people unknowingly fat; not conducive to the prevention of chronic diseases. According to these three meanings, let's rank junk food.

Junk index: ★★★★★

Coke and other sodas - the classic "junk food". In addition to sugar and phosphorus, they contain almost no other nutrients that the human body needs. Currently we have too much phosphorus in our food, and too much phosphorus prevents calcium absorption and promotes calcium loss. With grain in the diet, there is also no need for additional sugar.

White wine - Although many products are labeled as "pure grain fermentation", white wine can be said to be nutritionally useless except for alcohol and water and aroma substances. Alcohol in white wine is itself a toxic substance, not only damage to the liver, but also hinder the absorption of nutrients, metabolism, but also additional consumption of B vitamins.

Junk index: ★★★★

Twist and other fried small food - protein, vitamins and minerals are not enough. The oil used for frying is heated for a long time, and the fatty acids undergo harmful chemical changes that introduce a variety of harmful ingredients; alum is often added to them to improve the taste, and is a source of aluminum pollution in food. Candy - sugar content is usually more than 85%, in the sugar food, the real health benefits, only the cocoa content of more than 70% of dark chocolate. Potato chips - potato chips are rich in potassium and B vitamins, the basis is very good, but in the frying process absorbed a lot of fat, vitamin loss is serious, and the formation of adverse health "acrylamide" class of substances.

Junk index: ★★★★★

Instant noodles - low vitamin and mineral content, less dietary fiber. Its soup packets contain a lot of salt and MSG, and the sauce or oil packets contain a lot of fat, and it is difficult to ensure freshness. However, it is low in acrylamide and does not need to add alum, so the level of garbage is lower than other fried snack foods. Puffed small food - low protein content, insufficient vitamins, some also contain aluminum. And many products contain hydrogenated vegetable oils, which contain trans fats and saturated fats that are very bad for heart health. Mooncakes and other desserts - belong to the high sugar, high fat and low fiber food, energy is very high, eat more easy to increase weight. A variety of so-called fruit products, in fact, mainly from fruit flavoring and coloring.

Junk index: ★★★

Hamburger - contains starch, protein, fat and minerals. Has some nutritional value, the main problem is that it has more fat, less fiber, and not enough vitamin C and other antioxidants. If it is accompanied by vegetables and some coarse grains and beans at the next meal, it can be part of a normal diet. Frozen soup dumplings, frozen meat dumplings, etc. - the main ingredients belong to refined grains, with high saturated fat content, high energy, insufficient fiber, and the content of vitamins and minerals varies depending on the filling. Canned food - canned food is included in the junk food, it is a bit wrong. Canned fruit cooking will lose most of the Vc, but most of the minerals and almost all of the dietary fiber to be retained. Such as yellow peaches canned carotene to save; peas, mushrooms and other canned vegetables to retain the minerals and dietary fiber; canned meat in the minerals did not lose, even because of high temperature and high pressure heating, bones, spines in the calcium is also more dissolved out.