Blueberry vs Watermelon: Which Is Better for Kidneys?

Q: Which has more potassium, blueberry or watermelon?

Per 100 g, blueberry contains 214 mg and watermelon contains 112 mg of potassium.

Q: Is blueberry or watermelon better for kidney disease?

Based on CKD stage 3-4 daily limits, blueberry is rated kidney-friendly and watermelon is rated kidney-friendly. Ratings reflect mineral load per 100 g only — individual advice should come from your healthcare team.

Q: What is the main difference for a CKD diet?

The largest difference is potassium: watermelon sits at 6% of the daily limit versus 11% for blueberry. See each food page for the full mineral profile.

Side by side, Blueberry (Kidney-friendly) and Watermelon (Kidney-friendly) differ most in Potassium: Blueberry has 214 mg, Watermelon has 112 mg. If you are choosing between them, Watermelon leaves more room in the daily allowance — the Potassium gap is 6% versus 11%.

Blueberry
Kidney-friendly Watermelon
Kidney-friendly

Phosphorus

36 mg

11 mg

Sodium

3 mg

<1%

1 mg

<1%

Potassium

214 mg

11%

112 mg

See Blueberry details See Watermelon details

Frequently asked questions

Which has more potassium, blueberry or watermelon?

Per 100 g, blueberry contains 214 mg and watermelon contains 112 mg of potassium.

Is blueberry or watermelon better for kidney disease?

Based on CKD stage 3-4 daily limits, blueberry is rated kidney-friendly and watermelon is rated kidney-friendly. Ratings reflect mineral load per 100 g only — individual advice should come from your healthcare team.

What is the main difference for a CKD diet?

The largest difference is potassium: watermelon sits at 6% of the daily limit versus 11% for blueberry. See each food page for the full mineral profile.