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Fish, tuna, light, canned in oil, without salt, drained solids

Per 100 g edible portion
Meat & Protein
Higher riskUsing CKD stage 3-4 limits, Fish falls in the Higher risk tier - Phosphorus (31%) is the main risk source.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus311 mg31%
High
Sodium50 mg2%
Low
Potassium207 mg10%
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 31% of the limit, from Animal source (higher absorption). On a phosphorus-restricted diet, limit how often and how much you eat it.

Other nutrients

Protein29.1 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

A handy approach - Boiling meat first and discarding the water removes some phosphorus and potassium; prefer low-phosphorus proteins like egg whites.

Related foods

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Frequently asked questions

Is Fish safe for kidney disease?

Combining phosphorus, sodium and potassium, Fish falls in the Higher risk tier, with Phosphorus (31%) contributing the most. Plan meals with your doctor's guidance.

Why is Fish rated Higher risk?

The deciding factor is Phosphorus: 311 mg, 31% of the limit, in the >30% band - so Fish is rated Higher risk.

How much Phosphorus is in Fish?

Data: 100 g of Fish has Phosphorus 311 mg (31% of the 1,000 mg limit).

Is Fish safe on a low-potassium diet?

Low-potassium question: Fish falls below the 300 mg threshold (Potassium 207 mg per 100 g). Whether it fits depends on your daily potassium budget.

How does Fish compare to other meat & protein foods?

Next to other Meat & Protein options, Fish carries more Phosphorus at 311 mg per 100 g. Use your own daily limits, not category labels, as the guide.