Yam can be consumed in moderation by the general public, except in cases where there is an abundance of solid evils, such as oesophagogastric stagnation (the accumulation of indigested food in the stomach), fullness in the epigastrium (abdomen), belching (hiccups), acid reflux, inappetance, and dryness of the bowels. During the use of traditional Chinese medicine, it can also be consumed in moderation, the specific dietary taboos should still be subject to the guidance of a medical professional. Yam, also known as Dioscorea opposita, Huaishan, sweet, warm, flat, non-toxic, into the lungs, spleen, kidney meridian, with the spleen and stomach, the production of fluids and beneficial to the lungs, tonifying the kidney and astringent, etc., clinically commonly used to treat coughing and shortness of breath, abdominal and abdominal distension, fatigue, tiredness and weakness (tiredness and fatigue), do not think about eating, urination, diarrhea for a long time, spermatorrhea, spermatorrhea, and women’s white blood, and other symptoms. The use of drugs should be under the guidance of a doctor, not self-medication.