1. Tieguang yam can be eaten with the skin on.

2. Tieguang yam has many effects: first, it can replenish qi. It is rich in amino acids and trace elements, so it has the functions of strengthening the spleen and stomach, nourishing the lungs and kidneys, replenishing qi, and calming the mind; Thirst produces fluid, because fresh yam is rich in a variety of nutrients, which can prevent abnormal lipid metabolism and arteriosclerosis in the human body, enhance human immunity and other health care effects; thirdly, beautify and nourish the skin. Modern research has found that there is a special nourishing effect in iron ore yam. Skin beauty and beauty have unique curative effects.