For a long time, people have always thought that potatoes are easy to get fat, so they are discouraged. In fact, the most fundamental reason for weight gain is that the human body consumes more calories than it does, and potatoes are an ideal food to control weight. People classify potatoes as fattening foods because their starch content is too high. In fact, the starch content of potatoes is not high, only about 20%. The most economical and direct energy source of human body is carbohydrate. For people who want to lose weight, 50%-60% of calories in food should come from carbohydrates, and most of them should be complex carbohydrates, that is, they contain a lot of dietary fiber, vitamins and minerals, which is the biggest feature of potatoes. Potatoes are not only low-calorie foods, but also have extremely low fat content, which is the least among all hungry foods, which is very beneficial to control the total fat intake in daily diet. Moreover, the water content of potatoes is very high, as high as 78.6 grams per 100 grams. With dietary fiber, people feel full after eating and can avoid taking too much, which is the key factor to control their weight. "Eating potatoes will never make people fat, especially women who love potatoes. They can eat boldly. It's not potatoes that make you fat, but oil, cheese, candy and ice cream. " Experts say so. If potatoes make people fat, there is only one way-when potatoes meet oil. If you fry or fry potatoes, the starch in potatoes will solidify in the body, and with the action of vegetable oil or animal oil, it is easy to make people fat. Therefore, it is best to cook, steam, stew and bake potatoes, so that the starch particles contained in potato fibers will decompose and will not penetrate into the human body. If you add fat when cooking potatoes, you must cut other foods rich in fat to ensure that the total fat in one day will not exceed the standard. If you want to lose weight, you might as well replace rice and steamed bread with potatoes, so that boiled potatoes, potato chips and fried potato cakes become part of your diet. Potato chips are a typical representative of potato snacks. Cooking and heating temperature at home will not exceed 120℃, so stewed potatoes can be enjoyed safely. However, when the industrial food processing temperature exceeds 120℃, potatoes will produce a toxic substance called "acrylamide" after high-temperature frying, and potato chips are the food with the highest content of this toxic substance. So be sure to eat potato snacks such as potato chips in moderation. Mashed potatoes and chips in fast food are also a kind of snacks that people like to eat. In the process of processing, potatoes are oxidized, vitamin C is greatly destroyed, and the nutritional components are greatly reduced.