ModerateUsing CKD stage 3-4 limits, Fish falls in the Moderate tier, mainly driven by Phosphorus (20%). Enjoy in moderation.
Phosphorus / Sodium / Potassium (rating basis)
Phosphorus205 mg20%
Moderate
Sodium74 mg4%
Low
Potassium386 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 (20%), Fish belongs in the watch category. Pairing it with low-phosphorus sides like white rice or egg whites balances the meal.
Other nutrients
Protein18.4 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.
On a CKD stage 3-4 basis, Fish is Moderate, with risk mainly coming from Phosphorus (20%). Data is for reference and is not medical advice.
Why is Fish rated Moderate?
Simply put: among Fish's three minerals, Phosphorus is highest (205 mg, 20%), and by the tier rule (15-25%) the result is Moderate.
How much Phosphorus is in Fish?
Per 100 g, Fish provides Phosphorus 205 mg, compared with the CKD stage 3-4 limit of 1,000 mg (20%).
Is Fish safe on a low-potassium diet?
On a low-potassium plan, Fish exceeds the 300 mg reference, showing 386 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 (205 mg per 100 g) than the group average. Individual needs still decide what fits your plan.