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Grapefruit, raw, white, California

Per 100 g edible portion
Fruits
Kidney-friendlyMeasured against KDIGO/KDOQI daily limits, Grapefruit is Kidney-friendly: even its highest mineral, Potassium, reaches only 7% of the limit.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus12 mg1%
Low
Sodium0 mg<1%
Low
Potassium143 mg7%
Low

About this food

Grapefruit is a common member of Fruits. 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. This helps when choosing similar foods.

Nutrient insight

Potassium is the highest of the three at 7%. With reduced kidney function, blood potassium can rise, so spread high-potassium foods across the day rather than in one large serving.

Other nutrients

Protein0.9 gNot part of rating
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

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.

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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 (7% of limit). This site presents data, not medical judgment.

Why is Grapefruit rated Kidney-friendly?

The reason: Potassium (143 mg, 7%) is the most prominent of Grapefruit's three minerals, at the <15% level, which maps to Kidney-friendly.

How much Potassium is in Grapefruit?

In every 100 g of Grapefruit, Potassium is about 143 mg - roughly 7% of the daily limit (2,000 mg).

Is Grapefruit safe on a low-potassium diet?

For people watching potassium, Grapefruit falls below 300 mg per 100 g, with Potassium at 143 mg. Confirm your personal limit with your nephrologist or renal dietitian.

How does Grapefruit compare to other fruits foods?

Against the Fruits average, Grapefruit shows less Potassium (143 mg per 100 g). The tier shown here comes from its own numbers, not the category.