Is hamburger really junk food?

Bao, as a foreign fast food, was given extremely high treatment at the beginning of its introduction. At that time, eating KFC and McDonald's seemed superior. Gradually, with the improvement of people's health awareness, they were included in the category of "junk food".

But the calories are several times more than the same volume of food, and there are carcinogens (such as heterocyclic amines and polycyclic aromatic hydrocarbons) in barbecue. This kind of food has low nutritional value and belongs to unhealthy food.

To sum up, the whole hamburger seems to be a collection of high calories and low nutritional density. Although the combination basically contains seven kinds of nutrients, except for fat, carbohydrates and a small amount of protein, there are few other vitamins, minerals and dietary fiber, which can't meet the needs of a meal.

However, for the hamburger set meal, the single nutritional component, high calorie, high fat content, low dietary fiber and low nutritional density seem to be balanced, but in fact it is almost the collection of the most unhealthy eating practices.