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Grapefruit, raw, pink and red, all areas

Per 100 g edible portion
Fruits
Kidney-friendlyFrom a daily-limit view, Grapefruit lands in the Kidney-friendly band: Potassium is highest at 7%, still comfortably low.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus18 mg2%
Low
Sodium0 mg<1%
Low
Potassium135 mg7%
Low

About this food

For Fruits, Grapefruit is a typical example. 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

Protein0.8 gNot part of rating
Fiber1.6 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)6.9 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?

Grapefruit is rated Kidney-friendly: Potassium is 7% of the CKD stage 3-4 limit, the highest item. Individual needs should be discussed with your healthcare team.

Why is Grapefruit rated Kidney-friendly?

Grapefruit's Potassium content (135 mg) equals 7% of the limit, sitting in the <15% band - that is why it rates Kidney-friendly.

How much Potassium is in Grapefruit?

Data: 100 g of Grapefruit has Potassium 135 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 135 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 135 mg per 100 g. Use your own daily limits, not category labels, as the guide.