Fruits, vegetables, low-potassium foods and iron-rich foods help to support healthy kidneys and improve the effects of kidney disease, according to the San Francisco Chronicle. Additionally, it's important to keep sodium intake low and to stay hydrated.
Those suffering from advanced kidney disease may need reduce fluid intake, according to the American Kidney Fund. Damaged kidneys don't pass fluids properly, causing fluid retention, which may lead to high blood pressure, trouble breathing and heart failure. Monitoring fluid intake is more than reducing the number of beverages consumed; rather, it includes restricting certain types of water-dense foods such as soups, ice cream and most vegetables and fruits.
Reducing potassium is also important for those with kidney disease, reports the American Kidney Fund. Lower-potassium foods include fruits such as apples, grapes, strawberries and pineapples. Vegetables such as onions, peppers, cauliflower and lettuce are low in potassium as are tortillas, white rice, breads, beef and chicken. High-potassium foods to be avoided include bananas, avocados, tomatoes, bran and beans.
Phosphorus buildup is common in patients with kidney disease, explains the American Kidney Fund. It's recommended to substitute wholegrain breads, bran or oat cereals, nuts and soda with low-phosphorus alternatives such as sourdough bread, corn cereal, cream of wheat and lemonade.