Purple potato is also a kind of sweet potato. Sweet potato contains a lot of starch and sugar, which has the functions of tonifying the middle energizer, activating blood, warming the stomach and fattening the five internal organs. You can eat at any time, but you shouldn't eat too much at any time. In the past, there was a shortage of food in the countryside. Only in the sweet potato harvest season can we eat enough sweet potatoes, and some people "send sweet potatoes", which means getting fat and gaining weight. Therefore, sweet potato is not a diet food. If you want to lose weight, you should eat less and eat more melons such as melon, pumpkin and cucumber.

Sweet potato, also known as sweet potato, sweet potato, sweet potato and so on. Sweet potato contains a variety of nutrients needed by human body. Every 500 grams of sweet potato can produce about 635 kilocalories, including protein 1/kloc-0.5 grams, sugar 14.5 grams, fat1gram, phosphorus 100 mg, calcium 90 mg, iron 2 grams and carotene 0.5 mg.

The contents of vitamin b 1 and b2 are 6 times and 3 times higher than those of rice, respectively. In particular, sweet potatoes are rich in lysine, while rice and flour just lack lysine.

But many people haven't realized it yet.

Whether eating sweet potatoes can make people fat. According to scientific research, eating sweet potato will not make people fat. On the contrary, sweet potato is an ideal diet food. ?

Its calorie content is very low, much lower than ordinary rice, so 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.

Therefore, many foreign women regard sweet potato as beauty food. ?

Sweet potato is crisp and sweet when eaten raw, which can replace fruit; Cooked food is sweet and soft, eaten in the mouth and sweet in the heart. It can be used as both a staple food and a vegetable. Steaming, boiling, frying and frying can be eaten in many ways, and once cooked skillfully, it can also become a delicacy on the table.

Sweet potato not only has high nutritional value, but also tender stems and leaves are nutritious fresh vegetables. The protein content of sweet potato stems and shoots is more than 10 times higher than that of other vegetables such as spinach and spinach, and the contents of vitamin C, vitamin b2, calcium, iron and magnesium are higher than those of ordinary vegetables.

How to eat the stem tip: stir-fry, stir-fry with meat, chicken stew or boil with boiling water and then cold-mix, which tastes better than beans and celery. In Hong Kong and Guangzhou, the dishes are called Longevity Cuisine, Japanese Sichuan Cuisine and Healthy Tip. Especially for diabetics.