1, keep fit

Although yam is a kind of food, it is also a kind of medicinal material, which can nourish yin and tonify kidney. This medicinal material was found in Liuwei Dihuang Pill. In addition, eating yam regularly helps to treat hypertension and diabetes, and also helps to relieve neurasthenia and low back pain.

2, delay aging

According to the latest scientific research, yam can effectively reduce the activity of some special enzymes in the body, which can accelerate the aging of the body. Regular consumption of yam has a very good nourishing effect and helps to prolong life.

3. Anti-tumor

Polysaccharide in yam can stimulate and regulate the immune system of human body, so it is often used as a health care drug to enhance immunity. Yam can also enhance the phagocytosis of white blood cells, effectively enhance the body's resistance, help to sterilize and diminish inflammation, and even help to fight tumors.

Step 4 treat skin diseases

Yam contains a special substance called allantoin, which has anesthetic and analgesic effects and can promote skin growth. In addition, yam also has anti-inflammatory and bacteriostatic effects, and is often used to treat chapped hands and feet, ichthyosis and various keratotic skin diseases.

Disadvantages:

Although mucin contained in yam can effectively lower blood sugar, yam is a kind of root food with high starch content. Eating too much yam is likely to lead to high blood sugar in diabetic patients, especially after meals. Therefore, diabetics should not eat too much yam at a time.

Although yam is warm, it is also a tonic. When eating hot pot, even if you don't eat spicy soup base and spicy seasoning, you will eat a lot of mutton, which will make yam stimulate the role of these spicy ingredients and seasonings, which will easily make people get angry. So people who like to eat hot pot or ordinary people must eat less yam after eating hot pot.

Tips for purchasing yam:

When purchasing, the heavier the yam of the same size, the better, and the more hairs on the same variety, the better. The more hair, the better taste, and the more yam polysaccharide. Nutrition is also better, and finally look at the cross section. The meat quality of the cross section of yam should be white, which means it is fresh. If it is yellow like rust, don't buy it.

If there are abnormal spots on the surface of yam, don't buy it, because it may have been infected with the disease, and pay attention to the fact that the cross section of yam should have mucus and the epidermis is not damaged. Yam is afraid of freezing and heat. To buy yam in winter, you can hold it in your hand for about 10 minutes. Yam is frozen if it sweats. When you break it, the cross-section mucus of frozen yam will become water, hard-hearted, red in flesh and poor in quality.

Refer to the above? People's Network-What are the benefits of eating yam? What are the edible taboos of yam?