Diet plays a very important role in the treatment of IgA nephropathy patients. For IgA nephropathy patients, the general dietary requirement is to eat a light diet, avoid spicy foods, and avoid fried foods. IgA nephropathy patients can eat beef. Beef contains animal protein, which is a high-quality protein with essential amino acids that are easily absorbed and utilized by the human body. Of course, if IgA nephropathy patients have normal kidney function, there aren't too many restrictions on their diet compared to healthy individuals. They should mainly consume fresh vegetables and fruits, and avoid pickles, salty vegetables, and fermented vegetables. If there is accompanying kidney dysfunction, it is advisable to minimize the intake of plant proteins and limit the consumption of plant-based proteins such as soy products.