Diet for people with chronic kidney disease

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A low-protein diet is used in people with abnormal kidney function to prevent worsening of their kidney disease. The diet is often low in sodium and potassium as well. For some people on this diet, fluid restriction is also necessary. And if you have diabetes along with kidney disease, a low-carbohydrate diet may be necessary.

Renal disease - diet; Kidney disease - diet

This special diet is very helpful because it decreases the stress on the kidney.

• Protein is restricted to decrease the protein load on the kidney and slow down the progression of kidney disease.
• Sodium may be restricted to improve blood pressure control and to avoid fluid accumulation.
• Potassium is restricted if it is not excreted effectively and levels in the blood are high. When you have too much potassium in your blood, dangerous heart rhythms may result.

The controlled amounts of each of these nutrients are based on the blood levels of potassium, sodium, protein (measured as total protein and albumin), and urea (a waste product normally excreted in the urine).

Fluid is only restricted if you accumulate excessive amounts in your body.

Calcium and phosphorus, two other important minerals in the body, are also followed closely. Phosphorous can become too high if you have kidney disease. Calcium can become too low. If the blood levels of these two minerals indicate that you need to adjust your intake of them, then the amounts allowed in your diet are altered. If that alone is not enough, supplements and medications are used.

Review Date: 09/02/2005
Reviewed By: William McGee, M.D., M.H.A., Assistant Professor of Medicine and Surgery, Tufts University School of Medicine, Boston, MA, and Director ICU Quality Improvement, Critical Care Division, Baystate Medical Center, Springfield, MA. Review provided by VeriMed Healthcare Network.