Kidney yin deficiency such as the need for dietary therapy, you can eat Chinese wolfberry, mulberry and other medicinal and food products. Chinese wolfberry is a yin tonic, flat, sweet taste, attributed to the liver, kidney meridian, with nourishing the liver and kidney, benefit the essence of the eyes (tonic essence, promote vision recovery) effect. It can be used for treating deficiency of essence, dizziness and tinnitus, dimness and uncertainty of the eyes, and soreness of the waist and knees. Note that this product should not be taken by people with spleen deficiency and diarrhea (diarrhea caused by weak spleen function). Mulberry is a blood tonic, cold in nature, sweet and sour in taste, belonging to the heart, liver and kidney meridians, with the effect of tonifying blood and nourishing yin, generating fluids and moistening dryness, mainly used in treating yin deficiency of liver and kidney (deficiency of yin fluid in the liver and kidney), vertigo and tinnitus, palpitation (accelerated heartbeat often accompanied by heartburn) and insomnia, premature whitening of beard and hair, and thirst due to injury of fluids. Note that this product should be used with caution for those with loose stools. The above medicinal products are recommended to be used under the guidance of a doctor, and should not be used on their own.