1, yam bean and Dioscorea opposita are from the same plant, and yam bean and Dioscorea opposita have almost the same efficacy, both of which have high nutritional value. Yam is the underground stem of the yam plant, and yam bean is the kidney-shaped or oval pearl bud between the axils of the aerial part of yam, also known as Reiyoshi and yam seeds. Yam bean and yam are both good products for invigorating spleen, tonifying lung and nourishing in autumn and winter.

2. Nutrition experts suggest that yam bean can be eaten as a food with homology of medicine and food, and it is appropriate to eat it in moderation. Everything should not be overused. You can put a little when cooking porridge, put it when cooking rice, or cook it directly and eat it in moderation. Yam bean contains substances such as amylase and polyphenol oxidase, which can promote digestion and absorption. Secondly, mucin in yam bean can reduce blood cholesterol, prevent fat deposition in cardiovascular system, protect arterial blood vessels and prevent arteriosclerosis; Saponins and mucus in yam bean are good for lungs and cough. Yam and yam bean taste similar, with a faint fragrance. There are many ways to eat, which is most suitable for porridge or stew.