Yam as an ingredient does not have the efficacy and effect of medicine, but moderate consumption can supplement the body’s nutrients and energy, which is beneficial to human health. Every 100 grams of yam contains 327 kilocalories of energy, 9.4 grams of protein, 70.8 grams of carbohydrates and 1.4 grams of crude fiber, which can be a good source of carbohydrates and protein supplementation. In addition, yams also contain diosgenin, mucilage, choline, starch, glycoproteins, free amino acids, vitamin C, amylase, etc., rich in nutritional value, and other ingredients with the consumption of balanced nutritional diet. However, the starch content in yam is high, so it is recommended to consume it in moderation and match it reasonably.