Oysters are a common food with nutritional value and can be consumed in moderation, but they have no medicinal properties or effects and cannot be used to tonify the kidneys. Oysters are the world’s number one farmed shellfish and one of the important marine biological resources available to mankind. Oysters have a high water content of 87.1% and the most important nutrient is protein, which accounts for 10.9%. In terms of vitamins, oysters have a high niacin content of 1.5mg/100g. In terms of minerals, oysters have a high potassium content of 375mg/100g. Moderate consumption of oysters can replenish some of the nutrients needed by the body, but oysters should not be consumed alone to maintain daily activities, and patients are advised to have a balanced diet. There is no research result showing that oysters have medicinal efficacy and value, and cannot be used for kidney tonic. It is recommended that patients go to a regular hospital in time and follow the doctor’s instructions for symptomatic treatment.