
People with compromised kidney function must adhere to a renal or kidney diet to cut down on the amount of waste in their blood. Wastes in the blood come from food and liquids that are consumed. When kidney function is compromised, the kidneys do not filter or remove waste properly. If waste is left in the blood, it can negatively affect a patient’s electrolyte levels. Following a kidney diet may also help promote kidney function and slow the progression of complete kidney failure. A renal diet is one that is low in sodium, phosphorous, and protein. A renal diet also emphasizes the importance of consuming high-quality protein and usually limits fluids.
Characteristics | Values |
---|---|
Type of diet | Renal diet |
Purpose | Cut down on the amount of waste in the blood |
Waste in the blood | comes from food and liquids that are consumed |
Effect on waste | kidneys not filter or remove waste properly |
Effect on electrolyte levels | negatively affect a patient’s electrolyte levels |
Effect on kidney function | promote kidney function and slow the progression of complete kidney failure |
Nutrients | low in sodium, phosphorous, and protein |
High-quality protein | emphasizes the importance of consuming high-quality protein |
Fluid intake | usually limiting fluids |
Foods to include | veggies, fruits, proteins, seasonings and oils, whole grains |
Foods to avoid | fast food and packaged foods |
Portion sizes | varies from person to person |
Foods to include | beans and lentils, fish or seafood, lean beef, skinless poultry |
Iron-rich foods | DASH |
Foods to include | fruits, veggies, low-fat dairy products, whole grains, fish, poultry, beans, seeds, and nuts |
High-quality protein
When following a renal diet, it is important to limit the amount of protein you consume, as protein comes from both plants and animals. Good protein sources for someone with kidney disease include:
- Beans and lentils (in small amounts, as they also contain phosphorus)
- Fish or seafood
- Lean beef (like sirloin or tenderloin)
- Skinless poultry
A cooked portion of chicken, fish, or meat is about 2 to 3 ounces or about the size of a deck of cards. A portion of dairy foods is ½ cup of milk or yogurt, or one slice of cheese.
It is important to talk to your doctor or dietitian about the best renal diet for you, as portion sizes and foods to avoid will vary from person to person. Your exact renal diet will also depend on your size, age, and the stage of your disease.
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Portion sizes
A cooked portion of chicken, fish, or meat is about 2 to 3 ounces or about the size of a deck of cards. A portion of dairy foods is ½ cup of milk or yogurt, or one slice of cheese. A portion of cooked beans is about ½ cup, and a portion of nuts is ¼ cup. A portion of bread is a single slice, and a portion of cooked rice or cooked noodles is ½ cup.
When following a renal diet, it is important to choose fresh foods and cook from scratch as much as you can. Avoid fast food and packaged foods.
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Foods to avoid
People with compromised kidney function must adhere to a renal or kidney diet to cut down on the amount of waste in their blood. Wastes in the blood come from food and liquids that are consumed. When kidney function is compromised, the kidneys do not filter or remove waste properly. If waste is left in the blood, it can negatively affect a patient’s electrolyte levels. Following a kidney diet may also help promote kidney function and slow the progression of complete kidney failure. A renal diet is one that is low in sodium, phosphorous, and protein. A renal diet also emphasizes the importance of consuming high-quality protein and usually limits fluids.
Protein is found in foods from plants and animals. Most people eat both types of protein. Talk to your dietitian about how to choose the right combination of protein foods for you. A cooked portion of chicken, fish, or meat is about 2 to 3 ounces or about the size of a deck of cards. A portion of dairy foods is ½ cup of milk or yogurt, or one slice of cheese. A portion of cooked beans is about ½ cup, and a portion of nuts is ¼ cup. A portion of bread is a single slice, and a portion of cooked rice or cooked noodles is ½ cup.
Beans and lentils (in small amounts, as they also contain phosphorus), fish or seafood, lean beef (like sirloin or tenderloin), and skinless poultry are good protein sources for someone with kidney disease.
Choose fresh foods and cook from scratch as much as you can. Avoid fast food and packaged foods.
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Renal diet foods
A renal diet is one that is low in sodium, phosphorous, and protein. It also emphasizes the importance of consuming high-quality protein and usually limits fluids.
Good protein sources for someone with kidney disease include:
- Beans and lentils (in small amounts, as they also contain phosphorous)
- Fish or seafood
- Lean beef (like sirloin or tenderloin)
- Skinless poultry
A cooked portion of chicken, fish, or meat is about 2 to 3 ounces or about the size of a deck of cards. A portion of dairy foods is ½ cup of milk or yogurt, or one slice of cheese.
A portion of cooked beans is about ½ cup, and a portion of nuts is ¼ cup. A portion of bread is a single slice, and a portion of cooked rice or cooked noodles is ½ cup.
Choose fresh foods and cook from scratch as much as you can. Avoid fast food and packaged foods.
Talk to your doctor about which iron-rich foods you can eat when you have CKD. DASH stands for Dietary Approaches to Stop Hypertension. It’s a diet rich in fruits, veggies, low-fat dairy products, whole grains, fish, poultry, beans, seeds, and nuts.
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Phosphorus in beans
People with compromised kidney function must adhere to a renal or kidney diet to cut down on the amount of waste in their blood. Wastes in the blood come from food and liquids that are consumed. When kidney function is compromised, the kidneys do not filter or remove waste properly. If waste is left in the blood, it can negatively affect a patient’s electrolyte levels.
Following a kidney diet may also help promote kidney function and slow the progression of complete kidney failure. A renal diet is one that is low in sodium, phosphorous, and protein. A renal diet also emphasizes the importance of consuming high-quality protein and usually limits fluids.
A cooked portion of beans is about ½ cup, and a portion of nuts is ¼ cup. Beans and peas, being plant-based foods, are linked to a decreased risk of inflammatory diseases.
Research has revealed that only 50% or less of the phosphorus in legumes is absorbed. Phytates in plant protein bind phosphorus, preventing absorption. In addition to phosphorus, another concern when including legumes is potassium. Most beans have 250 mg or more potassium in 1/2 cup, which is high. So beans must be planned, with attention to how much and how often to include them. A couple of lower potassium choices include green peas with 88 mg and garbanzo beans with 173 mg in 1/2 cup.
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Frequently asked questions
A renal diet is low in sodium, phosphorous, and protein. It also emphasizes the importance of consuming high-quality protein and usually limits fluids.
Many healthy foods can be enjoyed on a renal diet. These include veggies like cabbage, red bell peppers, cauliflower, and onions, fruits like apples, cranberries, blueberries, raspberries, strawberries, cherries, and red grapes, proteins like lean meat, skinless poultry, eggs, and fish, seasonings and oils like fresh or dried herbs, spices, garlic, and olive oil, and whole grains like barley, buckwheat, bulgur, wild rice, and unsalted popcorn.
Talk to your dietitian about how to choose the right combination of protein foods for you.
Good protein sources for someone with kidney disease include beans and lentils, fish or seafood, lean beef (like sirloin or tenderloin), and skinless poultry.