What is a kidney failure diet?

A kidney failure diet controls phosphorus, sodium and potassium (and often fluids) to reduce the load on failing kidneys. On this site the rating limits are 1,000 mg phosphorus, 2,000 mg sodium and 2,000 mg potassium per day — the same transparent rule used across the database.

What is GFR 30 and what does it mean for diet?

GFR 30 ml/min means kidney function is around 30% of normal, which is CKD stage 3. At this point potassium and phosphorus targets usually tighten, and the food chart starts to matter more. Your nephrologist will set your individual targets from your blood results.

Is a renal failure diet different for acute vs chronic failure?

The dietary levers are the same — control the three minerals and fluids — but acute renal failure moves fast and is usually managed in hospital, while chronic kidney failure is managed long-term at home. Either way, individual targets come from labs, not from a generic chart.

What foods should I treat with caution with kidney failure?

The caution list on this page shows the highest-load foods in the database: items where potassium or phosphorus exceeds the threshold per 100 g. Processed foods with phosphate additives are especially worth limiting, because additive phosphate is absorbed almost completely.

Kidney Failure Diet: Food Chart, List & Low GFR Advice

Kidney failure diet basics

A kidney failure diet tightens the same three minerals that matter in earlier CKD — phosphorus, sodium and potassium — because as kidney function drops, the kidneys remove less of each. The rating basis on this site stays the same (1,000 / 2,000 / 2,000 mg per day), and the food chart on this page shows the lower-risk options to lean on and the caution items to treat carefully.

Low GFR and what it means for diet

GFR (glomerular filtration rate) is the measure of kidney function. A GFR around 30 ml/min corresponds to CKD stage 3, and the closer GFR falls toward dialysis range, the tighter potassium and phosphorus targets usually become. This site rates against the stage 3-4 limits; the stage 3 and stage 4 diet guides show how the food chart shifts between stages.

Acute vs chronic kidney failure

Acute renal failure (a sudden drop in function) and chronic kidney failure (a gradual decline over years) have different timelines but the same short-term dietary levers — control potassium, phosphorus and sodium, and manage fluids. Acute changes should always be managed by a hospital team, since they can develop quickly.

Reading the food chart

The food chart below works like every list on this site: values are per 100 g, compared to the daily limits, and the tier comes from the highest of the three minerals. Items marked friendly stay well under the limits; caution items are the highest-load foods in the database and should be portioned carefully.

Lower-risk options (18)

Treat with caution (12)

Higher riskLeavening agents, baking powder, low-sodiumK 10100 · P 6869 · Na 90 mg Higher riskLeavening agents, cream of tartarK 16500 · P 5 · Na 52 mg Higher riskLeavening agents, baking powder, double-acting, straight phosphateK 5 · P 9918 · Na 7893 mg Higher riskParsley, freeze-driedK 6300 · P 548 · Na 391 mg Higher riskBeverages, tea, instant, unsweetened, powderK 6040 · P 239 · Na 72 mg Higher riskBeverages, tea, instant, decaffeinated, unsweetenedK 6040 · P 239 · Na 72 mg Higher riskSpices, chervil, driedK 4740 · P 450 · Na 83 mg Higher riskSpices, coriander leaf, driedK 4466 · P 481 · Na 211 mg Higher riskBeverages, Cocoa mix, low calorie, powder, with added calcium, phosphorus, aspartame, without added sodium or vitamin AK 2702 · P 1630 · Na 653 mg Higher riskSpices, dill weed, driedK 3308 · P 543 · Na 208 mg Higher riskBeverages, coffee, instant, regular, powderK 3535 · P 303 · Na 37 mg Higher riskBeverages, coffee, instant, regular, half the caffeineK 3535 · P 303 · Na 37 mg

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