Renal (Kidney) Disease Diet—For People Not on Dialysis
by Cynthia M. Johnson, MA
What Is a Renal Disease Diet?
A renal disease diet limits:
Why Do I Need to Follow This Diet?
People with kidney disease have kidneys that do not filter the blood as well as they should. This may cause some nutrients to build up to unhealthy levels. You can ease the load on your kidneys by lowering your intake of them. This will lower your risk of kidney problems. It may also slow the disease.
You will need to limit or avoid some foods. A dietitian can help you with meal planning.
Sodium is found in table salt and many other foods. Most canned and processed foods have it in high amounts. When the kidneys are not working as they should, extra sodium can cause:
To lower your sodium:
Use herbs and spices to add flavor to your food. Salt substitutes often contain potassium. You may also need to limit this mineral.
Potassium is found in many fruits and veggies. It is needed for your muscle and heart health. Potassium can build up in the blood in people who have kidney failure. This causes problems with how the heart works. You will need to limit the amount of potassium you take in each day. Do not eat high-potassium foods, such as potatoes, tomatoes, citrus fruits, avocados, bananas, and dried fruit. You may be able to eat some high-potassium food in very small amounts. Talk to your dietitian about how much is right for you.
Phosphorous is another mineral that needs to be limited. It can draw calcium out of the bones when it builds up in the blood. This causes your bones to weaken. Phosphorous is found in protein-rich foods, such as dairy products, meat, legumes, nuts, and seeds. Whole grains and cola also contain it. You may be able to eat some of these foods in very small amounts. Talk to your dietitian about how much is right for you.
Your doctor may also have you take a phosphate-binder. This medicine soaks up extra phosphorous and it leaves the body in your stool.
The kidneys of people with renal disease cannot process the waste products from protein as well as they should. Your dietitian will give you a daily protein limit. Here are some common high-protein choices and their serving sizes:
Many protein foods are also high in phosphorus and sodium. You need to limit or avoid these foods. Your dietitian will tell you how many servings you can take in each day.
You may need to limit your fluid intake. Taking in too much fluid can cause it to build up. This can lead to:
What Can I Eat?
A dietitian can help you learn which foods you can eat and the amounts. Here is a list of foods that you can still enjoy:
American Association of Kidney Patients
Eat Right—Academy of Nutrition and Dietetics
Dietitians of Canada
The Kidney Foundation of Canada
Kidney-friendly diet for CKD. American Kidney Fund website. Available at:
...(Click grey area to select URL)
Accessed June 18, 2019.
Nutrition and kidney disease, stages 1 to 4. National Kidney Foundation website. Available at: https://www.kidney.org/nutrition/Kidney-Disease-Stages-1-4. Accessed June 18, 2019.
Renal failure, chronic: diet therapy. EBSCO Nursing Reference Center Plus. Available at: https://www.ebscoh.... Updated November 17, 2017. Accessed June 18, 2019.
Last reviewed June 2019 by EBSCO Medical Review Board Dianne Scheinberg Rishikof MS, RD, LDN
Last Updated: 1/8/2020
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