One of the best diets that can help prevent kidney problems is the one rich in vegetable protein sources like soy or legumes, combined with whole grains. It is recommended to avoid animal protein as purines present in them convert to uric acid in the kidneys, making urine too acidic. This leads to the formation of uric acid crystals that are deposited in the kidneys as kidney stones.
A healthy diet which is low on sugar content can prove to be very good for kidney. It is recommended to reduce sugar intake in order to prevent kidney problem as high glucose level is known to affect the kidneys.
It is recommended to avoid foods that are high in sodium, canned foods, chips, fast foods, frozen meals, processed cheese slices, salt, processed meats, pickled foods, ketchup. Sodium can directly affect the kidneys' role in maintaining blood pressure. Too much sodium intake can trigger high blood pressure.
Reduce the amount of fruits and vegetables you consume to reduce potassium. However reducing potassium intake is only necessary if your kidney function drops to below 20 percent.
It is recommended to reduce intake of foods high in oxalic acid to avoid developing a variety of kidney stones. These foods include instant coffee, tea, concord grapes, tofu, beets, berries, peanuts, oranges, sweet potatoes, beans, chocolate, dark leafy green vegetables and draft beer.
Reducing high-phosphorus foods helps retain needed calcium as phosphorus blocks the absorption of calcium leading to difficulties in maintaining the electrolytic balance. Switch to a diet that is low on phosphorus rich foods such as cottage cheese, yogurt, milk, soy cheese, soy yogurt and hard cheeses.
Processed food like potato chips, crackers, deli meats, cheese spreads, and instant potato mix are all examples of processed foods that are high in sodium and phosphorus additives. Processed food can have negative effects on kidneys.