Tuna and CKD: Potassium, Phosphorus & Sodium Reference

Looking at the minerals alone, Tuna rates Kidney-friendly. Tuna is rated Kidney-friendly. Of phosphorus, sodium and potassium, Phosphorus is highest (14%), all below 15% of limits.

About Tuna

Tuna sits in the Meat & Protein group. 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

Tuna's phosphorus (14%) is worth noting - especially with Animal source (higher absorption) as the source, since absorption differs a lot.

Phosphorus / Sodium / Potassium per 100 g

Practical tips

Worth remembering: Boiling meat first and discarding the water removes some phosphorus and potassium; prefer low-phosphorus proteins like egg whites.

See the full Tuna food page →

Lower-risk alternatives