Mulberry, wolfberry and other medicinal foods can nourish kidney yin, and Chinese herbs such as asparagus can also be used to nourish kidney yin. Mulberry has the effect of generating fluids and moisturizing dryness, nourishing yin and tonifying blood (nourishing the blood in the body), and can be used for liver and kidney yin deficiency (deficiency of yin in the liver and kidneys), palpitations (rapid heartbeat often accompanied by panic), insomnia, dizziness, tinnitus, premature whitening of the beard and hair; internal heat and thirst (fever accompanied by symptoms such as overeating, excessive drinking, excessive urination, etc.), thirst due to injury of the fluids and constipation due to dryness of the intestines and bowels. This product spleen and stomach deficiency cold (spleen and stomach weak cold) loose stool (feces thin not shaped) is prohibited, adverse reactions are not clear. Lycium barbarum has the effect of nourishing the liver and kidney, brightening the eyes and benefiting the essence, and can be used for deficiency of liver and kidney yin (deficiency of yin in the liver and kidney), deficiency of essence and blood, dizziness, tinnitus, soreness and pain in the waist and knees, impotence and spermatorrhea, internal heat and thirst (internal fever accompanied by symptoms such as eating more, drinking more and urinating more), fainting and uncertainty of the eyes and deficiency of the blood, and atrophy of the yellowish color. The adverse effects of this product are not clear, and should be taken with caution for those with spleen deficiency and loose stools (thin and unformed feces). TIAN DONG has the effect of nourishing yin and moistening dryness, generating fluids and clearing the lungs, and can be used for kidney yin deficiency, bone vapor and tidal fever (a burst of heat, feeling that the heat comes from inside the bones to the outside), lumbar and knee pain; dry cough, coughing up blood with labor and coughing up phlegm at once; internal heat and thirst (fever accompanied by symptoms such as overeating and excessive drinking, excessive urination, etc.), dry pharynx, thirst, heat-related diseases that injure the fluids and dryness of the intestines and constipation. This product is contraindicated for those with deficiency of spleen and stomach (spleen and stomach weak and cold), loose food (thin and unformed feces), as well as phlegm-damp cough, external wind-cold, adverse reactions are not yet clear. Please do not use the medicine by yourself. If you feel unwell, please go to the hospital.