LimitUsing CKD stage 3-4 limits, Fish falls in the Limit tier - Potassium (26%) is the main driver.
Phosphorus / Sodium / Potassium (rating basis)
Phosphorus201 mg20%
Moderate
Sodium57 mg3%
Low
Potassium522 mg26%
High
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
Potassium at 26% is the main consideration. Concentrated forms such as juice and dried fruit absorb faster; whole foods are gentler.
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 Limit tier, with Potassium (26%) contributing the most. Plan meals with your doctor's guidance.
Why is Fish rated Limit?
The deciding factor is Potassium: 522 mg, 26% of the limit, in the 25-30% band - so Fish is rated Limit.
How much Potassium is in Fish?
Per 100 g, Fish provides Potassium 522 mg, compared with the CKD stage 3-4 limit of 2,000 mg (26%).
Is Fish safe on a low-potassium diet?
On a low-potassium plan, Fish exceeds the 300 mg reference, showing 522 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 more on Potassium (522 mg per 100 g) than the group average. Individual needs still decide what fits your plan.