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Fish, haddock, cooked, dry heat

Per 100 g edible portion
Meat & Protein
LimitMeasured against KDIGO/KDOQI daily limits, Fish is Limit: Phosphorus hits 28% of its limit, close to the warning band.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus278 mg28%
High
Sodium261 mg13%
Low
Potassium351 mg18%
Moderate

About this food

Fish is a common member of Meat & Protein. Animal proteins tend to be higher in phosphorus, and animal phosphorus absorbs at 60-80% versus 30-50% for plants. Choosing low-phosphorus proteins such as egg whites or tofu, or controlling portions of red meat, is a common CKD approach. This helps when choosing similar foods.

Nutrient insight

Fish's phosphorus (28%) is worth noting - especially with Animal source (higher absorption) as the source, since absorption differs a lot.

Other nutrients

Protein20 gNot rated; needs attention at stage 4-5
Fiber0 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)0 gNaturally free of sugar
Alcohol0 gAlcohol-free
Purine93.1 mgModerate purineNot rated · category estimate
Oxalate1.5 mgLow oxalateNot rated · category estimate
Phosphorus source: Animal source (higher absorption) · Potassium form: Whole food

Practical tips

Worth remembering: Boiling meat first and discarding the water removes some phosphorus and potassium; prefer low-phosphorus proteins like egg whites.

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Related guides

Meat & ProteinLimit foodsLow potassium foodsLow phosphorus foods

Frequently asked questions

Is Fish safe for kidney disease?

Based on CKD stage 3-4 daily limits, Fish is rated Limit - Phosphorus is the highest contributor at 28% of its limit. Ratings reflect public nutrition data only; individual cases should follow medical advice.

Why is Fish rated Limit?

Among phosphorus, sodium and potassium, Fish's Phosphorus is highest (278 mg, 28% of daily limit), falling in the 25-30% band - hence the Limit rating.

How much Phosphorus is in Fish?

On a per-100 g basis, Fish contains Phosphorus 278 mg, or 28% of the 1,000 mg daily limit.

Is Fish safe on a low-potassium diet?

For a potassium-watching diet, Fish exceeds the 300 mg per 100 g marker (Potassium 351 mg). The safest step is checking this against your own lab-based limit.

How does Fish compare to other meat & protein foods?

Measured against other Meat & Protein foods, Fish is more in Phosphorus (278 mg per 100 g) than the category average - data-only, never a prescription.