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Stage 4 is the most restrictive pre-dialysis stage: potassium under 1,800 mg/day, phosphorus under 800 mg/day. These foods rate AVOID — high potassium or phosphorus makes them genuinely risky at this stage, and safer swaps are available for each.
Every food rated AVOID at stage 4 — the high-potassium and high-phosphorus foods that are genuinely risky now.
Values are per 100g (USDA FoodData Central / ICMR-NIN). Your actual serving may differ — always multiply by your portion. For a personal plan, check each food's guide for serving advice, leaching techniques, and safer alternatives. Your nephrologist and renal dietitian set YOUR individual limits.
Browse all foods with full guides