Yam belongs to potato and is rich in carbohydrates, dietary fiber, vitamins, including carotene, vitamin B 1 and B2, and minerals such as calcium, phosphorus, potassium, sodium, magnesium, iron, zinc and copper.

There are many kinds of yam, among which iron stick yam and Huai yam are the most famous. Iron stick yam is mainly produced in Henan and Shandong. Compared with common yam, iron stick yam has more hair, white color, less water, high viscosity and strong physique, and cannot be cooked for a long time. Yam, also known as water yam, is mainly produced in Jiangsu, Anhui and other places, and its stems are usually purplish red.

The root of fine-haired yam is cylindrical, thin-skinned, with fine hairs on the surface and yellow; There are yellow-brown mottled moles; Meat is white. There are also hemp potatoes, ganoderma lucidum potatoes and yamato taro potatoes imported from Japan.

Suitable for dietotherapy crowd

1, MM: Yam is a good helper to lose weight, because it contains less calories, more nutrients and rich crude fiber, which is easy to increase people's satiety and control their appetite. Moreover, the fat content of yam is very low, with only 0.2g fat per100g yam, thus achieving the purpose of slimming.

2. Women with cold hands and feet: Chinese medicine believes that cold hands and feet are closely related to physical weakness, while yam black chicken soup and longan yam soup have good effects of tonifying the middle warmer, benefiting qi and nourishing blood, especially suitable for patients with cold hands and feet.

3, the elderly who are prone to colds: yam has the effect of strengthening the spleen and benefiting qi. Therefore, patients with qi deficiency, excessive sweating and repeated colds should moderately increase the intake of yam in autumn and winter. Yam can be fried, steamed and spun, or cooked with rice, millet and jujube.

4, indigestion: yam contains amylase, polyphenol oxidase and other substances, which is conducive to the digestion and absorption function of the spleen and stomach. It is a two-purpose product for blindly nourishing the spleen and stomach. Both spleen yang deficiency and stomach yin deficiency can be eaten. Clinically, it is often used to treat spleen and stomach weakness, anorexia, fatigue, diarrhea and other diseases.

Refer to People's Daily Online for the above content-Is yam the most suitable for 8 kinds of people? Recommend 4 Chinese yam recipes