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Fish, herring, Atlantic, cooked, dry heat

Per 100 g edible portion
Meat & Protein
Higher riskMeasured against KDIGO/KDOQI daily limits, Fish is Higher risk: the highest item, Phosphorus, is at 30% of its limit, above 30%.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus303 mg30%
High
Sodium115 mg6%
Low
Potassium419 mg21%
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 (30%) is worth noting - especially with Animal source (higher absorption) as the source, since absorption differs a lot.

Other nutrients

Protein23 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 & ProteinHigher risk foodsLow potassium foodsLow phosphorus foods

Frequently asked questions

Is Fish safe for kidney disease?

Combining phosphorus, sodium and potassium, Fish falls in the Higher risk tier, with Phosphorus (30%) contributing the most. Plan meals with your doctor's guidance.

Why is Fish rated Higher risk?

The deciding factor is Phosphorus: 303 mg, 30% of the limit, in the >30% band - so Fish is rated Higher risk.

How much Phosphorus is in Fish?

On a per-100 g basis, Fish contains Phosphorus 303 mg, or 30% 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 419 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 (303 mg per 100 g) than the category average - data-only, never a prescription.