1 You can't eat yam after it has white buds. Although yam did not produce toxic substances such as solanine after germination, the nutrients of yam itself began to transform during germination, and its nutritional value began to decline.

2. Yam is a kind of high-nutrient food which is common in daily life. Now its efficacy and value are more and more well known. Yam is rich in protein, starch, vitamin C, vitamin E, glucose and amino acids. It can be used not only as medicinal materials but also as ingredients! In many ancient books, it is recorded that yam has the functions of hearing, improving eyesight, strengthening spleen, tonifying lung and strengthening kidney. Eating more yam can strengthen spleen and stomach and help digestion. In traditional Chinese medicine, yam is often used to treat spleen and stomach weakness and other diseases.