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Grapefruit, raw, pink and red and white, all areas

Per 100 g edible portion
Fruits
Kidney-friendlyGrapefruit scores Kidney-friendly across all three minerals - Potassium leads at 7% of its limit, far from any caution threshold.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus8 mg<1%
Low
Sodium0 mg<1%
Low
Potassium139 mg7%
Low

About this food

How to think about Fruits: Grapefruit is worth a closer look - 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

The most striking number here is potassium (7%). For patients on potassium restriction, portion size and leaching are the two levers that matter for foods like Grapefruit.

Other nutrients

Protein0.6 gNot part of rating
Fiber1.1 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)7 gNatural sugar
Alcohol0 gAlcohol-free
PurineNo dataNot rated · reference for those with high uric acid
OxalateNo dataNot rated · reference for those with kidney stones
Phosphorus source: Natural plant source (lower absorption) · Potassium form: Whole food

Practical tips

A handy approach - For high-potassium fruits, portion control is the main lever - for example, half a banana instead of a whole one.

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Related guides

FruitsKidney-friendly foodsHigh fiber foodsLow sodium foods

Frequently asked questions

Is Grapefruit safe for kidney disease?

Based on CKD stage 3-4 daily limits, Grapefruit is rated Kidney-friendly - Potassium is the highest contributor at 7% of its limit. Ratings reflect public nutrition data only; individual cases should follow medical advice.

Why is Grapefruit rated Kidney-friendly?

Among phosphorus, sodium and potassium, Grapefruit's Potassium is highest (139 mg, 7% of daily limit), falling in the <15% band - hence the Kidney-friendly rating.

How much Potassium is in Grapefruit?

Data: 100 g of Grapefruit has Potassium 139 mg (7% of the 2,000 mg limit).

Is Grapefruit safe on a low-potassium diet?

Low-potassium question: Grapefruit falls below the 300 mg threshold (Potassium 139 mg per 100 g). Whether it fits depends on your daily potassium budget.

How does Grapefruit compare to other fruits foods?

Next to other Fruits options, Grapefruit carries less Potassium at 139 mg per 100 g. Use your own daily limits, not category labels, as the guide.