Protein and Kidney Health
Low‐protein diet for chronic kidney disease: Evidence, controversies, and practical guidelines
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 51 / 5
Evidence Score
Based on clinical experience or non-systematic literature reviews. The lowest level of evidence as they are most susceptible to bias and personal perspective.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 51 / 5
Evidence Score
Based on clinical experience or non-systematic literature reviews. The lowest level of evidence as they are most susceptible to bias and personal perspective.
Publication
Journal
Journal of Internal Medicine
Year
2025
Authors
Denise Mafra, I. Brum, N. Borges, V. O. Leal, Denis Fouque
Related Content
Claims (5)
Eating a lot of protein might put extra strain on your kidneys, which could be harmful over time.
Eating too much protein might make kidney problems worse in people who already have kidney issues or are at risk for them, by putting extra strain on the kidneys and causing more damage over time.
When people with kidney disease eat a lot of protein, it can lead to more harmful waste in their body because their gut bacteria get out of balance and their kidneys can't clean it out well, causing heart problems and swelling.
For people with kidney disease, the right amount of protein in their diet depends on their age, health, and other conditions—too little can cause poor nutrition, but too much might harm the kidneys. Doctors usually suggest between 0.6 and 1.2 grams per kilogram of body weight each day.
Eating less protein might help people with kidney disease by reducing protein in their urine, slowing down kidney damage, and delaying the need for dialysis or transplant.