“Eating yam three taboos” this statement is not accurate enough, the yam allergy is prohibited to eat, there are stagnant people, dampness in the full (dampness is too heavy to cause fullness of the spleen and stomach discomfort) should not be used alone yam, solid heat and evil solid need to be used with caution. Yam is a kind of medicine and food ingredients, taste sweet, sex flat, belonging to the spleen, lung, kidney meridian, has the spleen and stomach, the production of fluid and benefit the lungs, tonifying the kidney astringent effect, the yam has a history of allergy to people prohibited from eating, in order to avoid allergic reactions. In addition, people with stagnation, dampness and fullness in the middle should not use yam alone, and people with real heat and evil need to be cautious. Modern nutritional science believes that every 100g of yam contains 1.9g of protein, 12.4g of carbohydrates, 213mg of potassium, etc. Moderate consumption can provide nutrients for the body to maintain normal physiological functions of the body. If you need to use yam to treat diseases, should be taken under the guidance of a doctor, do not use at will to avoid adverse effects.