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Fish, cusk, raw

Per 100 g edible portion
Meat & Protein
ModerateOn a stage 3-4 CKD basis, Fish's Moderate rating is led by Phosphorus (20%), placing it in the 15-25% band.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus204 mg20%
Moderate
Sodium31 mg2%
Low
Potassium392 mg20%
Moderate

About this food

Fish (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 is the same lens used for similar items.

Nutrient insight

Phosphorus leads at 20%. In CKD, track phosphorus intake and factor in the source (Animal source (higher absorption)) to judge the true burden.

Other nutrients

Protein19 gNot rated; needs attention at stage 4-5
Fiber0 gBeneficial for CKD (core plant-based nutrient)
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

How to eat it more safely: 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 & ProteinModerate foodsLow potassium foodsLow phosphorus foods

Frequently asked questions

Is Fish safe for kidney disease?

By our rating standard (CKD stage 3-4), Fish is Moderate. Main consideration: Phosphorus at 20% of the daily limit. Data is for reference; consult your care team.

Why is Fish rated Moderate?

Fish is rated Moderate because Phosphorus is 20% of its limit (204 mg) - the only mineral reaching the 15-25% range.

How much Phosphorus is in Fish?

In every 100 g of Fish, Phosphorus is about 204 mg - roughly 20% of the daily limit (1,000 mg).

Is Fish safe on a low-potassium diet?

For people watching potassium, Fish exceeds 300 mg per 100 g, with Potassium at 392 mg. Confirm your personal limit with your nephrologist or renal dietitian.

How does Fish compare to other meat & protein foods?

Against the Meat & Protein average, Fish shows less Phosphorus (204 mg per 100 g). The tier shown here comes from its own numbers, not the category.