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Grapefruit, sections, canned, juice pack, solids and liquids

Per 100 g edible portion
Fruits
Kidney-friendlyGrapefruit scores Kidney-friendly across all three minerals - Potassium leads at 8% of its limit, far from any caution threshold.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus12 mg1%
Low
Sodium7 mg<1%
Low
Potassium169 mg8%
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

Potassium at 8% is the main consideration. Concentrated forms such as juice and dried fruit absorb faster; whole foods are gentler.

Other nutrients

Protein0.7 gNot part of rating
Fiber0.4 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)8.8 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: Processed or concentrated

Practical tips

A common practice is: 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 scores Kidney-friendly on the phosphorus/sodium/potassium assessment, led by Potassium (8% of limit). This site presents data, not medical judgment.

Why is Grapefruit rated Kidney-friendly?

The reason: Potassium (169 mg, 8%) is the most prominent of Grapefruit's three minerals, at the <15% level, which maps to Kidney-friendly.

How much Potassium is in Grapefruit?

Per 100 g, Grapefruit provides Potassium 169 mg, compared with the CKD stage 3-4 limit of 2,000 mg (8%).

Is Grapefruit safe on a low-potassium diet?

On a low-potassium plan, Grapefruit falls below the 300 mg reference, showing 169 mg of Potassium per 100 g. Individual targets vary by CKD stage and lab results.

How does Grapefruit compare to other fruits foods?

Within Fruits, Grapefruit ranks less on Potassium (169 mg per 100 g) than the group average. Individual needs still decide what fits your plan.