According to the National Kidney Foundation (NKF) your kidneys have the vital task of removing waste products from the blood and regulating your body's water fluid level. Your kidneys are also responsible for releasing hormones that control blood pressure. The NKF says a healthful kidney diet generally consists of following the Food Guide Pyramid. However, certain dietary restrictions are recommended for people who suffer from kidney disease.
Food Guide Pyramid
The NKF says the Food Guide Pyramid provides a nutritious diet that recommends eating a variety of foods from each of the major food groups. These food items include fruits, vegetables, low-fat milk and dairy products, meat, fish, nuts and beans as well as heart-healthful (canola, olive) oils.
Potassium Precautions
According to the National Kidney and Urological Disease Clearinghouse (NKUDS), people with chronic kidney disease should limit their intake of potassium. The NKUDS says since diseased kidneys may not be able to remove excess amounts of potassium, the heart rhythm of chronic kidney disease patients may become imbalanced. High-potassium foods include bananas, peas, oranges and potatoes.
Sodium Restrictions
The NKUDS says people with kidney disease should also restrict the amount of sodium in their diet. Sodium is a chemical found not only in salt but also in foods such as hot dogs and frozen dinners. When consumed in large amounts it may lead to an increase in blood pressure.
Cholesterol Considerations
A healthful kidney diet is low in fat. The NKUDS says kidney failure may be linked to high cholesterol in people with kidney disease. A buildup of cholesterol on the walls of blood vessels may place an undue burden on the heart that may be lead to strokes and heart attacks.
High Protein Warning
The Mayo Clinic says a high intake of protein-rich foods may be dangerous for people with kidney disease. The NKUDS says while normal kidneys remove waste from the blood and leave behind protein, impaired kidneys may not be able to differentiate protein from the waste.
Outlook
If your kidneys are not able to adequately perform their job, your dietary needs will depend on your age, medical history and the functioning level of your kidneys, according to the Kidney Foundation of Canada. A dietitian can help you create a meal plan that will reduce the burden on your kidneys while meeting your nutritional requirements.
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