Food can play a more limited medicinal effect, can not replace the drug treatment, often consumed to nourish the liver of food such as pig liver, tonifying the spleen of the yam and so on. According to Chinese nutrition, pig liver is sweet, bitter and warm in nature, belonging to the liver, spleen and stomach meridians, and has the effect of nourishing the liver and brightening the eyes, tonifying the qi and strengthening the spleen, which can be used to alleviate the symptoms of liver deficiency and dimming of the eyes, night blindness, and so on. Chinese nutritional science believes that yam is sweet in flavor, flat in nature, and belongs to the spleen, lung, and kidney meridians, and has the effect of nourishing the spleen, nourishing the lungs, consolidating the kidney, and benefiting the vital essence, and can be used to alleviate the discomforts of a deficient spleen with little food, and loose stools (thin, unshapely feces), and other discomforts. Compared with drugs, food is weaker and slower to take effect, so it is generally not used in the treatment of diseases, please follow the doctor’s instructions.