Who needs to limit protein?
Some people with chronic kidney disease who are not on dialysis are advised to limit protein, says the National Kidney Foundation. People on dialysis usually need more. The right amount depends on your body size and the state of your kidneys, so follow the amounts your own care team gives you.
People with phenylketonuria (PKU) follow a diet low in phenylalanine, a building block of protein, for life. They avoid many high-protein foods, says the US child health institute NICHD.
Sources
- National Kidney Foundation. CKD Diet: How much protein is the right amount? Accessed 11 Nov 2026. https://www.kidney.org/kidney-topics/ckd-diet-how-much-protein-right-amount
- National Institute of Diabetes and Digestive and Kidney Diseases. Healthy Eating for Adults with Chronic Kidney Disease. Reviewed Jan 2025. Accessed 11 Nov 2026. https://www.niddk.nih.gov/health-information/kidney-disease/chronic-kidney-disease-ckd/eating-nutrition
- Eunice Kennedy Shriver National Institute of Child Health and Human Development. What are common treatments for phenylketonuria (PKU)? Reviewed 16 Jan 2024. Accessed 11 Nov 2026. https://www.nichd.nih.gov/health/topics/pku/conditioninfo/treatments











































