Sweet potato contains a lot of dietary fiber, which can effectively stimulate intestinal peristalsis and secretion of digestive juice, and is very helpful to eliminate constipation and reduce the occurrence of intestinal diseases. In addition, sweet potato is also rich in potassium and vitamin C, which helps to improve the edema of the human body. Asano Nagaakira Zhenmeizi, a Japanese management nutritionist, said that eating a little oil on the basis of dietary fiber has a better laxative effect. Therefore, after the sweet potato is cooked, sprinkle a little virgin olive oil, which tastes better and has a better moisturizing effect, and can replace some staple foods.

In addition, the calorie of sweet potato is only 1/3 of that of rice with the same weight, and it contains almost no fat and cholesterol; At the same time, it can effectively prevent sugar from transforming into fat, which is beneficial to weight control. However, sweet potato has a high sugar content, and eating it on an empty stomach will produce a lot of stomach acid, which makes people feel heartache. Sweet potato also contains an oxidase, which produces a large amount of carbon dioxide gas in the gastrointestinal tract. If you eat too much, you will have symptoms such as bloating and burping. Don't eat too many sweet potatoes at a time.

Health care function of sweet potato

1, lose weight, beauty. Whether eating sweet potatoes can make people fat. According to scientific research, eating sweet potatoes will not make people fat. On the contrary, sweet potato is an ideal diet food. Its calories are very low, much lower than ordinary rice. You don't have to worry about getting fat after eating it, but you can lose weight. Sweet potato also contains a substance similar to estrogen, which has a certain effect on protecting human skin and delaying aging. So many foreign women regard sweet potato as beauty food.

2. Anti-cancer. The most anticancer nutrients in the diet are β -carotene (the precursor of vitamin A), vitamin C and folic acid, and the contents of the three are rich in sweet potatoes. A small sweet potato (about 2 times) can provide twice the daily vitamin A, one third of the daily vitamin C, and about 50 micrograms of folic acid. The content of dietary fiber is higher than a bowl of oatmeal. Eating sweet potatoes regularly helps to maintain the normal folic acid level of the human body, and low folic acid content in the body will increase the risk of cancer. Sweet potato has high dietary fiber content, which can promote gastrointestinal peristalsis and prevent constipation and colorectal cancer.