Nephrotic syndrome is characterized by urine protein greater than 3.5 grams, serum albumin less than 30, the presence of edema, and hyperlipidemia. Patients matching these criteria can be diagnosed with nephrotic syndrome. From its diagnosis, we can see that such patients have a high amount of urine protein and relatively low blood protein. For these patients, it is necessary to control their protein intake, generally suitable at 0.6-0.8 grams per kilogram of body weight per day. Due to hypoalbuminemia, as the liver synthesizes protein, it also leads to an increase in blood lipids. Therefore, patients with nephrotic syndrome need to follow a low-fat diet to avoid further elevation of blood lipids. Additionally, as patients with nephrotic syndrome generally have edema, it is necessary to restrict sodium intake to prevent sodium and water retention, further aggravating the edema.