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Fish, cod, Atlantic, cooked, dry heat

Per 100 g edible portion
Meat & Protein
Kidney-friendlyFish scores Kidney-friendly across all three minerals - Phosphorus leads at 14% of its limit, far from any caution threshold.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus138 mg14%
Low
Sodium78 mg4%
Low
Potassium244 mg12%
Low

About this food

How to think about Meat & Protein: Fish is worth a closer look - 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.

Nutrient insight

Fish's phosphorus is the top contributor (14% of its limit). Source matters: animal phosphorus absorbs at 60-80%, additive phosphorus near 100% - the same number can mean very different real loads.

Other nutrients

Protein22.8 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

Practical tip: 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 & ProteinKidney-friendly foodsHigh fiber foodsLow sodium foods

Frequently asked questions

Is Fish safe for kidney disease?

Fish is rated Kidney-friendly: Phosphorus is 14% of the CKD stage 3-4 limit, the highest item. Individual needs should be discussed with your healthcare team.

Why is Fish rated Kidney-friendly?

Fish's Phosphorus content (138 mg) equals 14% of the limit, sitting in the <15% band - that is why it rates Kidney-friendly.

How much Phosphorus is in Fish?

Per 100 g, Fish contains Phosphorus 138 mg, which is 14% of the CKD stage 3-4 daily limit (1,000 mg).

Is Fish safe on a low-potassium diet?

On a low-potassium diet, Fish falls below the 300 mg per 100 g reference point, providing 244 mg of Potassium. Treat this as a reference - your stage and labs decide the real target.

How does Fish compare to other meat & protein foods?

Compared with the typical Meat & Protein food, Fish has less Phosphorus - 138 mg per 100 g on record. Ratings on this site always use the food's own measured values.