Higher riskBased on CKD stage 3-4 daily limits, Fish is rated Higher risk - Phosphorus exceeds 42% of its limit, past the 30% warning line.
Phosphorus / Sodium / Potassium (rating basis)
Phosphorus415 mg42%
High
Sodium49 mg2%
Low
Potassium333 mg17%
Moderate
About this food
Fish belongs to the Meat & Protein category. 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 42% of the limit, from Animal source (higher absorption). On a phosphorus-restricted diet, limit how often and how much you eat it.
Other nutrients
Protein17.8 gNot rated; needs attention at stage 4-5
Fiber0 gBeneficial for CKD (core plant-based nutrient)
Combining phosphorus, sodium and potassium, Fish falls in the Higher risk tier, with Phosphorus (42%) contributing the most. Plan meals with your doctor's guidance.
Why is Fish rated Higher risk?
The deciding factor is Phosphorus: 415 mg, 42% 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 415 mg (42% of the 1,000 mg limit).
Is Fish safe on a low-potassium diet?
Low-potassium question: Fish exceeds the 300 mg threshold (Potassium 333 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 415 mg per 100 g. Use your own daily limits, not category labels, as the guide.