In nephrotic syndrome, try to avoid eating fruits and vegetables with high potassium content, such as banana, and avoid eating fruits and vegetables with high water content, such as watermelon. The most obvious symptom of nephrotic syndrome in children is edema, and in serious cases, ascites, pleural effusion or large amount of proteinuria can occur. At this time, if eating fruits with high water content, such as watermelon, pineapple, cantaloupe, peaches and so on, may aggravate the degree of edema, so you should avoid eating a lot of these fruits and vegetables. Meanwhile, the function of kidneys of children with nephrotic syndrome may be relatively reduced, and fruits and vegetables with high potassium content, such as bananas, tangerines, oranges, persimmons and so on, may aggravate the burden of kidneys, which may lead to the aggravation of the disease, so they should be avoided to eat a lot of this kind of fruits and vegetables. Other fruits and vegetables can be eaten in moderation, or in small amounts under the guidance of a doctor. Fruits and vegetables can supplement vitamins and dietary fiber for children.