A big question after diagnosis of kidney disease is “What can I eat to save my kidneys?” If you are in early stages 1 or stage 2 chronic kidney disease (CKD), or if you have normal kidney function but are at high risk for kidney disease, today’s kidney diet tips may slow the progression of your kidney disease and prevent or delay the need for dialysis in the future.
What is the DASH Diet?
DASH Diet is a special diet focusing on reducing sodium intake and treat high blood pressure (1). It stands for Dietary Approaches to Stop Hypertension, which is why it is recommended for anyone with high blood pressure or kidney disease.
The DASH diet is rich in fruits, vegetables, and low fat dairy products. Emphasis is on lean proteins such as fish and poultry, whole grain products, legumes and nuts. The DASH diet is reduced in red meats, sweets, added sugars and sugar-containing beverages.
Composition-wise, the DASH diet is high in calcium, potassium, magnesium, phosphorus, protein and fiber. Calcium, potassium and magnesium in the diet play a role in reducing blood pressure.
Benefits
- The DASH diet and variations of the DASH diet are proven to result in significant reductions in blood pressure.
- High potassium and phosphorus content of the DASH diet usually is not an issue in early stages of CKD, as these restrictions may not be prescribed until stage 3 or stage 4 CKD.
- ACE inhibitors prescribed for blood pressure control may cause more potassium retention, so routine monitoring is important.
- A vegetarian DASH-style diet rich in fruits, vegetables, whole grains and nuts but lower in animal-protein may reduce protein (albumin) in the urine (measured as albumin excretion rate) in patients with proteinuria.
- Plant-based protein such as nuts, seeds, dried beans and legumes can replace some animal-protein.
- The DASH diet is associated with lower risk of kidney stone development.
High blood pressure and protein in the urine can contribute to the progression of kidney failure. For early stage CKD consider a DASH or vegetarian DASH-style diet to reduce blood pressure, reduce protein in the urine, and slow the progression of kidney disease.
Consult your doctor or dietitian for advice on the best diet for your individual needs.
