Article · 4 min read
Potassium and Kidney Disease: What to Know
Why potassium levels matter in kidney disease and which foods are high or low.
Last updated: 24/9/2026
Potassium keeps the heart and muscles working. Failing kidneys may not remove enough, letting it rise to dangerous levels.
High-potassium foods
- ✓Bananas, coconut water, oranges
- ✓Potatoes, tomatoes, spinach
- ✓Dals and nuts in large amounts
Lower-potassium options
- ✓Apples, pineapple, grapes
- ✓Cabbage, cucumber, capsicum
- ✓White rice
Frequently Asked Questions
Is coconut water bad for kidney patients?
It is very high in potassium, so usually limited or avoided if your potassium is high.
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.