Nutritional value of yam

1. The calorie and carbohydrate content of yam is only about half that of sweet potato of the same quality, and it contains no fat, and the protein content is higher than that of sweet potato.

2. The main component of yam is starch, part of which can be converted into dextrin, a decomposition product of starch, which can help digestion, so yam is a taro food that can be eaten raw.

3. Yam contains a variety of trace elements, among which the content of potassium is high, the types and quantities of vitamins are few, and there is almost no carotene.

The leaves of Chinese yam are an excellent source of carotene and calcium, iron and vitamin C.

Nutritional value of potatoes

From the nutritional point of view, potatoes have more advantages than rice and flour, and can supply a lot of heat energy to the human body, which is called "perfect food". People only rely on potatoes and whole milk to maintain their lives and health. Because the nutritional components of potatoes are comprehensive and the nutritional structure is reasonable, but the contents of protein, calcium and vitamin A are slightly lower, which is just supplemented with whole milk. Potato tuber is rich in water, low in fat and low in calories per unit volume. It contains 10 times of vitamin C, 4 times of B vitamins and several to several times of various minerals, which makes you feel full after eating. ?