Search Foods
Home › Food Database › Fish

Fish, tuna, fresh, yellowfin, raw

Per 100 g edible portion
Meat & Protein
LimitFish receives a Limit rating. Phosphorus at 28% of its limit is the highest of the three, so keep servings small.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus278 mg28%
High
Sodium45 mg2%
Low
Potassium441 mg22%
Moderate

About this food

In a CKD diet, Meat & Protein deserve attention: 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.

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

Protein24.4 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

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

Related foods

porkKidney-friendlybeefKidney-friendlypectinKidney-friendlyoilKidney-friendly

Related guides

Meat & ProteinLimit foodsLow potassium foodsLow phosphorus foods

Frequently asked questions

Is Fish safe for kidney disease?

Combining phosphorus, sodium and potassium, Fish falls in the Limit tier, with Phosphorus (28%) contributing the most. Plan meals with your doctor's guidance.

Why is Fish rated Limit?

The deciding factor is Phosphorus: 278 mg, 28% of the limit, in the 25-30% band - so Fish is rated Limit.

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 441 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.