How to Find the Best Protein Powder for Kidney Disease

📌 Overview and Key Takeaways

This is a Certified Nutrition Coach’s guide on how to find the best protein powder for kidney disease.

Discover how to safely meet your protein needs with kidney disease.

Last Updated Aug 28, 2026

Author and Medical Reviewer

Jack, CNC

Jack is a National Academy of Sports Medicine Certified Nutrition Coach.

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Disclaimer: This communication is for general informational purposes only and is not a substitute for personalized medical advice.

Protein Powder for Kidney Disease

Does Kidney Disease Affect My Protein Needs?

The kidneys are responsible for:

• Removing waste and extra water from the blood (as urine)
• Keeping chemicals such as sodium, potassium, and calcium balanced in the body
• Making hormones that help control blood pressure and red blood cell production

Kidney disease, also known as renal disease, refers to any condition that impairs kidney function.

There are several types, each with different causes, treatments, and symptoms, including:

1. Chronic Kidney Disease (CKD): CKD is characterized by a progressive decline in kidney function, leading to a buildup of waste products and fluid imbalances in the body. It is often caused by conditions like diabetes and high blood pressure.
2. Acute Kidney Injury (AKI): AKI is characterized by a rapid decline in kidney function, resulting in a sudden accumulation of waste products in the blood and an electrolyte imbalance. It is usually caused by dehydration, severe infection, medication, or decreased blood flow to the kidneys.
3. Polycystic Kidney Disease (PKD): PKD is an inherited progressive condition where fluid-filled cysts develop in the kidneys. It can cause complications like high blood pressure and kidney stones.
4. Glomerulonephritis: Glomerulonephritis refers to inflammation of the glomeruli, tiny filtering units within the kidneys. Glomerulonephritis can be caused by infections, immune system disorders, and other diseases.

Treatment for kidney disease aims to slow down the progression of the disease, manage symptoms, and prevent complications.

Treatment options include medications, lifestyle changes, dialysis (a process that helps filter blood when the kidneys are unable to do so), and in severe cases, kidney transplantation.

Symptoms of kidney disease vary depending on the underlying cause and the stage of the disease.

Common ones include fatigue, decreased urine output, fluid retention, swelling in the legs or face, blood in the urine, high blood pressure, and electrolyte imbalances.

Protein malnutrition is also common in kidney patients (Nutrients, 2017).

It affects 11-50% of adults and 20-45% of children, with prevalence rising as kidney function declines and reaching 28-54% among patients on maintenance dialysis (KDIGO, 2024).

It is therefore important that kidney patients prioritize meeting their daily protein requirements.

It is possible for kidney patients to consume too much protein, however, and doing so can lead to kidney damage.

When protein is digested, it is broken down into amino acids, which are used by the body to build and repair muscle tissues.

Excess amino acids (those that are not used by the body) are excreted by the kidneys.

When you eat a diet high in protein, your kidneys have to work harder to filter out excess amino acids, which can lead to kidney damage over time if your kidney function is impaired.

A high protein diet can also increase the levels of urea – a waste product created when protein is broken down – in the blood.

High levels of urea and other nitrogenous waste products can cause kidney damage and increase the risk for chronic kidney disease (CKD) in individuals with impaired kidney function (J Am Soc Nephrol, 2020).

Individuals with kidney conditions should thus be mindful of how much protein they consume.

When in doubt, consult with your doctor or dietitian before making changes to your diet.

How Much Protein Do Kidney Patients Need?

Whether kidney patients need extra protein depends on the stage of kidney disease and whether they are on dialysis.

Keep in mind that protein needs also vary significantly based on individual kidney function and treatment plans.

• Chronic Kidney Disease (CKD) – Early to Moderate Stages: In the early to moderate stages of CKD, kidney patients typically need to limit their protein intake as the kidneys are less effective at filtering waste products from protein metabolism at this time. The recommended protein intake for non-dialysis kidney patients is 0.6 to 0.8 grams per kilogram of bodyweight per day with > 50% HBV proteins (Nutrients, 2017). HBV stands for high biological value, and refers to protein sources such as eggs, fish, poultry, meat and dairy.
• End-Stage Renal Disease (ESRD) – On Dialysis: For kidney patients on dialysis, daily protein intake in the range of 1.0-1.2 grams per kilogram of body weight is recommended (KDOQI, 2020).

Generally speaking, kidney patients on dialysis require more protein than those in earlier stages of CKD.

Dialysis removes waste products from the blood, but it also removes protein.

To compensate for these losses and to prevent muscle wasting and malnutrition, kidney patients need to consume more protein.

Is Protein Powder Good for Kidney Patients?

First of all, people with kidney disease should use protein shakes or powders in moderation.

Basically, the only time a protein shake or powder is needed is when daily protein requirements are not being met.

That said, kidney patients undergoing dialysis often need extra protein to compensate for losses due to dialysis, which is where protein shakes or powders can help!

Adding the right protein powder to your diet can be an easy and safe way to ensure that you are eating enough protein and curbing muscle wasting and malnutrition.

Protein powder can be incorporated into smoothies, oatmeal, and other recipes.

It also makes it easy to measure how much protein you are eating.

Not all protein powders are created equal, however, and some types of protein powder are better for kidney patients than others.

What Is the Best Protein Powder for Kidney Disease?

Research suggests Egg White Protein is a good source of protein for those with kidney disease (Nutr Metab Cardiovasc Dis, 2019).

This is because kidney disease patients have high protein needs, but need to limit their phosphorus and potassium intakes, and egg whites are low in phosphorus and potassium.

Egg whites do contain a moderate amount of sodium, however, so if this is a concern for you, then they might not be the best option.

Moreover, if you need to limit your potassium intake, it is recommended you use unflavored egg white protein powder.

Added ingredients tend to contribute phosphorus to a formula, so it may be best to keep it simple!

All that said, the amount of egg whites allowed in your diet is dependent on your individual nutritional status, so consult with a healthcare professional before making changes to your diet.

Which Protein Powder Ingredients Should Kidney Patients Avoid?

Many protein powders are made with added ingredients that might cause complications for kidney patients.

Among these ingredients are artificial and ultra-processed food additives.

🚫 Avoid Food Additives

Regularly eating emulsifiers, thickeners, artificial sweeteners, and other additives can alter the composition of your gut microbiome (North Clin Istanb, 2019).

These shifts, known as gut dysbiosis, might contribute to the development of kidney disease (Front Med (Lausanne), 2021).

Dysbiosis can result in the increased production of uremic toxins, which, in turn, can exacerbate local and systemic kidney inflammation (Front Immunol, 2026).

It is important to note that much of this research is still emerging, so more studies are needed to clarify these relationships.

That said, the preliminary findings suggest that because protein shakes and powders are something you consume regularly, if not every day, the cumulative effects of small amounts of potentially harmful ingredients is worth taking seriously.

⚠️ Here is a list of the most common food additives in protein shakes and powders:

• acacia fiber
• acacia gum
• acesulfame potassium
• artificial flavors
• ascorbic acid
• aspartame
• calcium carbonate
• carrageenan
• cellulose gum
• dextrin
• dicalcium phosphate
• dipotassium phosphate
• erythritol
• gellan gum
• guar gum
• gum arabic
• inulin
• locust bean gum
• maltitol
• maltodextrin
• mono- and diglycerides
• ‘natural’ flavors
• rice bran extract
• rice dextrin
• rice hulls
• rosemary extract
• silica
• silicon dioxide
• sodium alginate
• soluble corn fiber
• sorbitol
• soy lecithin
• sucralose
• sunflower lecithin
• tocopherols
• tricalcium phosphate
• xanthan gum
• xylitol
• zinc oxide

As a rule of thumb, if you cannot find an ingredient in nature or make it at home, it is probably a food additive.

🚫 Avoid Protein Concentrates and Isolates

I also recommend avoiding protein concentrates and isolates.

Most protein shakes and powders are made from one or both of these ultra-processed protein sources, which have been mechanically and/or chemically stripped of everything but the protein.

This includes the enzymes, fiber, and other natural digestive aids that help you break them down.

You therefore might not digest them in the same way that you do whole foods, which could affect your gut health.

For example, one study shows that regularly consuming protein concentrates and isolates might disrupt your gut microbiome (Nutrients, 2018).

Another study shows that it could cause the formation of toxic byproducts in your gut (Mol Nutr Food Res, 2024).

Although further research is needed, you can play it safe by choosing protein shakes and powders made from minimally-processed protein sources like egg whites and almonds.

Our customers find them to be more gut-friendly.

Order Samples to see for yourself.

Sources

1. Kidney Disease: Improving Global Outcomes (KDIGO). Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease. 2024.
2. Nutrients (Nutrients). Protein Nutrition and Malnutrition in CKD and ESRD. 2017.
3. Kidney Disease Outcomes Quality Initiative (KDOQI). Clinical Practice Guideline for Nutrition in CKD. 2020.
4. Nutrition, Metabolism & Cardiovascular Diseases (Nutr Metab Cardiovasc Dis). The impact of a nutritional intervention based on egg white for phosphorus control in hemodialyis patients. 2019.
5. Journal of the American Society of Nephrology : JASN (J Am Soc Nephrol). The Effects of High-Protein Diets on Kidney Health and Longevity. 2020.
6. Journal of renal care (J Ren Care). DIETARY EGG WHITES FOR PHOSPHORUS CONTROL IN MAINTENANCE HAEMODIALYSIS PATIENTS: A PILOT STUDY. 2011.
7. Northern Clinics of Istanbul (North Clin Istanb). Food additives and microbiota. 2019.
8. Frontiers in Medicine (Front Med (Lausanne)). Dysbiosis in Kidney Disease: Cause or Consequence?. 2021.
9. Frontiers in Immunology (Front Immunol). The gut-kidney axis in chronic kidney disease: a vicious cycle of microbial dysbiosis and uremic toxin accumulation. 2026.
10. Nutrients (Nutrients). Effect of a Protein Supplement on the Gut Microbiota of Endurance Athletes: A Randomized, Controlled, Double-Blind Pilot Study. 2018.
11. Molecular Nutrition & Food Research (Mol Nutr Food Res). In Vitro Fermentation of Animal and Plant Protein Isolates by the Human Gut Microbiota Under High and Low Carbohydrate Conditions. 2024.

Editorial Guidelines

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This article was written by a Certified Nutrition Coach and reviewed by Registered Dietitian. We rely on peer-reviewed research and trusted medical sources, and regularly update our content to ensure accuracy and clarity.