1, yam is not a high-calorie food, and the calorie per 100 mg of yam is about 60 calories, so the calorie of yam is not high.

2. Yam is rich in starch, which contains carbohydrates, that is, sugar. Carbohydrate in yam can produce 4kcal/g calories, so proper consumption of yam has a positive effect on restoring physical strength;

3. Carbohydrate in yam can provide abundant raw materials for glycogen in muscle. Therefore, for people who often engage in physical labor or physical exercise, proper consumption of yam has nutritional value in relieving muscle fatigue, improving muscle strength, and preventing and relieving muscle attenuation syndrome.