The dietary principles of IgA nephropathy are low salt, low fat, high quality and low protein diet, and reduce the intake of high purine food. Patients can refer to their dietary principles for three meals a day to ensure balanced nutrition, but not generalized. 1. Low-salt and low-fat diet: Excessive salt intake may cause IgA nephropathy patients’ blood pressure to rise further, while excessive fat intake may also aggravate the damage to the kidneys. 2. High quality and low protein diet: Excessive intake of protein will increase the burden on the kidneys, so it is recommended that patients should consume less vegetable protein and proper consumption of high quality animal protein, such as fish, milk, eggs and so on. 3. Reduce the intake of high purine food: IgA nephropathy patients are advised to reduce the intake of purine-rich food to minimize kidney damage. Such as spinach, animal offal, pork, seafood and so on. Patients with IgA nephropathy are advised to visit regular hospitals in time and standardize the treatment under the guidance of doctors.