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Potassium obtained from food and drink — the main modifiable driver of blood potassium levels in kidney disease.
Healthy kidneys excrete roughly 90% of dietary potassium. As eGFR falls below ~30 ml/min, excretion drops and dietary potassium becomes the main lever. A renal diet typically targets 2,000-3,000 mg/day for CKD stages 3b-5 and dialysis. High-potassium foods (dates, bananas, potatoes, avocado, nuts, dried fruit) must be portion-controlled or avoided; boiling vegetables leaches some potassium into the water.
High potassium in the blood — a common and potentially dangerous complication of CKD, especially with ACEi/ARB therapy — causing heart rhythm disturbances at severe levels.
Foods with under ~200 mg potassium per 100 g — the safe building blocks of a renal diet.
The eating plan for dialysis patients - higher protein (1.2 g/kg/day) with tight potassium, phosphorus, sodium, and fluid control.
A medication that binds potassium in the gut to lower blood potassium — allowing patients with CKD to stay on protective ACEi/ARB therapy.
A nutrition specialist who designs individualized kidney diets - balancing potassium, phosphorus, sodium, protein, and fluid against lab values.
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This content is a general reference, not medical advice, a diagnosis, or a treatment plan. Do not change your diet, fluids, medicines, or dialysis plan without your nephrologist or renal dietitian. Individual recommendations depend on your labs, medications, conditions, and care plan.