The effect of yam: 1. Improve the digestion and absorption function of the spleen and stomach, and promote digestion. 2. Strengthen the body, nourish the kidney and nourish the essence. 3. It can effectively prevent cardiovascular disease. 4. Enhance immune function and delay cell senescence. 5. The calorie content is relatively low, regular consumption, has the effect of weight loss and bodybuilding. "