Watermelon and CKD: Potassium Data per 100 g
For Potassium, Watermelon provides 112 mg per 100 g, or 6% of the daily limit. This sits in the Low band; check the food page for the other minerals as well.
About Watermelon
Watermelon sits in the Fruits group. Potassium levels vary widely across fruits - apples and berries are low-potassium, kidney-friendly picks, while bananas and avocados are high and need portion control. The natural sugar in fruit is usually not the issue; potassium is.
Nutrient insight
Potassium is the highest of the three at 6%. With reduced kidney function, blood potassium can rise, so spread high-potassium foods across the day rather than in one large serving.
Phosphorus / Sodium / Potassium per 100 g
Phosphorus11 mg1%Low
Sodium1 mg<1%Low
Potassium112 mg6%Low
Practical tips
How to eat it more safely: For high-potassium fruits, portion control is the main lever - for example, half a banana instead of a whole one.
See the full Watermelon food page →