How to Find the Best Protein Powder for Renal Patients

📌 Overview and Key Takeaways

This is a Dietitian’s guide on how to find the best protein powder for renal patients.

Discover how to safely supplement your protein intake with kidney disease.

Last Updated
Feb 2, 2026

Author and Medical Reviewer

Written by Jack, Founder

Jack is the Founder of Drink Wholesome.

Medically reviewed by Brittany, MS, RD and Jenn, PA-C

Kayla is a Registered Dietitian with a MS in Nutrition.

Jennifer is a Physician Assistant with a BA in Nutritional Sciences.

Protein Powder for Renal Patients

Is Protein Powder Good for Renal Patients?

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

It is therefore important that they prioritize meeting their daily protein needs.

It is possible for renal 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.

It follows that 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 disease therefore need to be mindful of how much protein they eat.

If you have questions about how much protein you need, consult our network of trusted healthcare professionals.

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

But if you do need the protein, adding protein powder to your diet is a convenient way to prevent muscle wasting and malnutrition.

It can be easily incorporated into smoothies, oatmeal, and other recipes, and makes it easy to know exactly how much protein you are consuming.

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

What Is the Best Protein Powder for Renal Patients?

Research suggests that Egg White Protein Powder and Bovine Collagen Protein Powder are the best sources for renal patients, especially those undergoing dialysis treatment.

This is because dialysis patients have high protein needs, but need to limit phosphorus and potassium intakes.

Both collagen and egg whites are low in phosphorus and potassium.

In fact, egg whites are not only low in phosphorus, but can also lower phosphorus levels in the blood (J Ren Care, 2011).

Egg whites do contain a moderate amount of sodium, however, so if this is a concern for you, then bovine collagen protein powder may be the best option.

Moreover, if you need to limit your potassium intake, it is recommended that you choose unflavored egg white or collagen protein powder.

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

It is worth adding that regularly consuming certain added ingredients might contribute to the development of kidney disease.

🚫 Avoid Food Additives

Regularly eating emulsifiers, thickeners, and other ultra-processed additives can alter the composition and function of your gut microbiome (North Clin Istanb, 2019).

These shifts, known as gut dysbiosis, have been linked to the progression of kidney disease (Front Microbiol, 2025).

This occurs through multiple interconnected mechanisms involving uremic toxin production, systemic inflammation, and disruption of the gut-kidney axis.

⚠️ Here is a list of the most common food additives in protein supplements:

• 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

It is worth mentioning that protein supplements like NOVASOURCE and Nepro, which are made specifically for renal patients on dialysis, are full of ultra-processed food additives like these, not to mention corn syrup and seed oils.

Although these products were specifically designed to help meet the nutritional needs of people on dialysis, they might not be healthy choices for renal patients.

🚫 Avoid Protein Concentrates and Isolates

Renal patients might also want to avoid ultra-processed protein concentrates and isolates.

Most protein supplements 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 your gut break them down.

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

Specifically, studies show that regularly eating protein concentrates and isolates might disrupt your gut microbiome and cause the formation of toxic byproducts in your gut (Nutrients, 2018; Mol Nutr Food Res, 2024).

Protein supplements made from whole food protein sources like egg whites and almonds, on the other hand, tend to be easier to digest and absorb.

Order Samples to see for yourself.

How Much Protein Do Renal Patients Need?

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

Keep in mind that protein requirements also differ 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, 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 renal patients is 0.6 to 0.8 grams per kilogram of bodyweight per day with > 50% HBV proteins. 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 renal patients on dialysis, daily protein intake in the range of 1.0-1.2 grams per kilogram of body weight is recommended.

In short, renal 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 and amino acids.

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

Sources

1. Nutrients (Nutrients). Protein Nutrition and Malnutrition in CKD and ESRD. 2017.
2. Journal of the American Society of Nephrology : JASN (J Am Soc Nephrol). The Effects of High-Protein Diets on Kidney Health and Longevity. 2020.
3. Journal of Renal Care (J Ren Care). DIETARY EGG WHITES FOR PHOSPHORUS CONTROL IN MAINTENANCE HAEMODIALYSIS PATIENTS: A PILOT STUDY. 2011.
4. Northern Clinics of Istanbul (North Clin Istanb). Food additives and microbiota. 2019.
5. Frontiers in Microbiology (Front Microbiol). The influence of gut microbiota on the gut-brain-kidney axis and its implications for chronic kidney disease. 2025.
6. Nutrients (Nutrients). Effect of a Protein Supplement on the Gut Microbiota of Endurance Athletes: A Randomized, Controlled, Double-Blind Pilot Study. 2018.
7. 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

---

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