Article · 4 min read
Phosphorus and Kidney Disease
Why phosphorus builds up in kidney disease and which foods to limit.
Last updated: 24/9/2026
Phosphorus works with calcium to build bone. When kidneys fail, phosphorus rises, pulling calcium from bones and hardening blood vessels.
High-phosphorus foods
- ✓Dairy products
- ✓Whole pulses, nuts and seeds
- ✓Cola drinks and processed foods with phosphate additives
Management
Diet limits phosphorus, and binder medicines taken with meals prevent absorption.
Frequently Asked Questions
Why are colas bad for kidney patients?
Dark colas contain phosphate additives that are easily absorbed and raise blood phosphorus.
Sources
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This page is for general education only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified doctor about your specific condition.