Left renal cyst is not uncommon in clinic. When kidney cysts appear, the diet should be adjusted accordingly. First of all, do not drink alcohol, do not drink coffee, strong tea, and do not eat barbecue food to avoid stimulating the enlargement of cysts. In terms of staple food, you can eat rice, noodles, steamed bread, corn, sweet potatoes, etc; Almost all green leafy vegetables can be eaten, such as potatoes, tomatoes, eggplants, cucumbers, cabbage, celery, etc; Fruit can eat bananas, oranges, grapes, watermelon; Protein intake can include lean meat, pure milk and tofu. Prevent the enlargement of renal cysts through these dietary adjustments.