Health note: This page is general education, not diagnosis or treatment advice. Do not change medicines, supplements, fluid targets, or a prescribed diet based on this page alone.
Potassium is essential for normal nerve and muscle function, including the heart. CKD can make potassium balance more difficult for some people, but a low-potassium diet is not automatically appropriate for everyone with CKD.
When food choices may change
If your potassium is high, a clinician or dietitian may recommend changes to portions, particular foods, preparation methods or potassium-containing additives. Salt substitutes can also contain potassium.
Use the lab, not a generic blacklist
Ask whether your potassium is in your target range and what changes, if any, are appropriate. See the broader CKD diet guide.