ModerateUsing CKD stage 3-4 limits, Fish falls in the Moderate tier, mainly driven by Phosphorus (21%). Enjoy in moderation.
Phosphorus / Sodium / Potassium (rating basis)
Phosphorus208 mg21%
Moderate
Sodium92 mg5%
Low
Potassium374 mg19%
Moderate
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
On the phosphorus angle (21%), Fish belongs in the watch category. Pairing it with low-phosphorus sides like white rice or egg whites balances the meal.
Other nutrients
Protein26.3 gNot rated; needs attention at stage 4-5
Fiber0 gBeneficial for CKD (core plant-based nutrient)
A common practice is: Boiling meat first and discarding the water removes some phosphorus and potassium; prefer low-phosphorus proteins like egg whites.
Combining phosphorus, sodium and potassium, Fish falls in the Moderate tier, with Phosphorus (21%) contributing the most. Plan meals with your doctor's guidance.
Why is Fish rated Moderate?
The deciding factor is Phosphorus: 208 mg, 21% of the limit, in the 15-25% band - so Fish is rated Moderate.
How much Phosphorus is in Fish?
Per 100 g, Fish provides Phosphorus 208 mg, compared with the CKD stage 3-4 limit of 1,000 mg (21%).
Is Fish safe on a low-potassium diet?
On a low-potassium plan, Fish exceeds the 300 mg reference, showing 374 mg of Potassium per 100 g. Individual targets vary by CKD stage and lab results.
How does Fish compare to other meat & protein foods?
Within Meat & Protein, Fish ranks less on Phosphorus (208 mg per 100 g) than the group average. Individual needs still decide what fits your plan.