When used as food, yam can be consumed intermittently in moderate amounts for a long period of time, while when used as a medicinal herb, it is not recommended to be taken for a long period of time. This product has the effect of tonifying the spleen and nourishing the stomach, etc., and should be used in accordance with doctor’s instructions. As a food, yam mainly contains water and carbohydrates, but also contains a small amount of protein, fat, vitamins, etc., which can provide the body with nutrients and contribute to the body’s normal life activities, and can be consumed for a long period of time in moderate intermittent amounts. Yam is beneficial to the lungs and generates fluids, nourishes the spleen and stomach, and tonifies the kidney and astringent essence. It is used for spleen deficiency with little food, prolonged diarrhea, kidney deficiency with spermatorrhea, lung deficiency with wheezing and coughing, frequent urination, dyspareunia, deficiency heat and thirst (equivalent to diabetes mellitus), and so on. Bran-fried yam is used for tonifying the spleen and strengthening the stomach, and is often used for spleen deficiency with little food, loose stools, diarrhea, and excessive leucorrhea. Yam is not suitable for people with dampness (too much dampness leading to fullness and discomfort in the spleen and stomach), which is characterized by abdominal distension, lack of desire to eat, and heavy limbs (weakness and heaviness of the limbs); and stagnation, which is characterized by abdominal distension and belching (hiccups), lack of appetite for breast milk, and acidic and foul-smelling stools. Adverse effects are not known. Therefore, it is not recommended to take it for a long period of time for the treatment of diseases, and the drug should be stopped when the disease is cured or when uncomfortable symptoms appear. If you need to use the medicine, please go to the hospital and use the medicine under the guidance of the doctor’s diagnosis.