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Fish, eel, mixed species, raw

Per 100 g edible portion
Meat & Protein
ModerateUsing CKD stage 3-4 limits, Fish falls in the Moderate tier, mainly driven by Phosphorus (22%). Enjoy in moderation.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus216 mg22%
Moderate
Sodium51 mg3%
Low
Potassium272 mg14%
Low

About this food

About Fish: 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. As a Meat & Protein item, its role in a kidney diet depends mainly on mineral content.

Nutrient insight

Fish's phosphorus is the top contributor (22% 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

Protein18.4 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 & ProteinModerate foodsHigh fiber foodsLow phosphorus foods

Frequently asked questions

Is Fish safe for kidney disease?

Fish scores Moderate on the phosphorus/sodium/potassium assessment, led by Phosphorus (22% of limit). This site presents data, not medical judgment.

Why is Fish rated Moderate?

The reason: Phosphorus (216 mg, 22%) is the most prominent of Fish's three minerals, at the 15-25% level, which maps to Moderate.

How much Phosphorus is in Fish?

Per 100 g, Fish contains Phosphorus 216 mg, which is 22% 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 272 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 more Phosphorus - 216 mg per 100 g on record. Ratings on this site always use the food's own measured values.