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Grapefruit juice, pink or red, with added calcium

Per 100 g edible portion
Fruits
Kidney-friendlyUsing CKD stage 3-4 limits, Grapefruit juice falls in the Kidney-friendly tier - Potassium (7%) is the most notable of the three, with low risk across the board.

Phosphorus / Sodium / Potassium (rating basis)

Phosphorus16 mg2%
Low
Sodium2 mg<1%
Low
Potassium132 mg7%
Low

About this food

About Grapefruit juice: 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. As a Fruits item, its role in a kidney diet depends mainly on mineral content.

Nutrient insight

Grapefruit juice's potassium is the top contributor (7% of its limit), so its potassium density deserves attention. In CKD stage 3-4 the kidneys clear potassium less well - control portions, and peeling, slicing or boiling can help.

Other nutrients

Protein0.5 gNot part of rating
Fiber0.3 gBeneficial for CKD (core plant-based nutrient)
Sugar (total)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

Practical tip: 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 juice safe for kidney disease?

Grapefruit juice 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 juice rated Kidney-friendly?

The reason: Potassium (132 mg, 7%) is the most prominent of Grapefruit juice's three minerals, at the <15% level, which maps to Kidney-friendly.

How much Potassium is in Grapefruit juice?

Per 100 g, Grapefruit juice contains Potassium 132 mg, which is 7% of the CKD stage 3-4 daily limit (2,000 mg).

Is Grapefruit juice safe on a low-potassium diet?

On a low-potassium diet, Grapefruit juice falls below the 300 mg per 100 g reference point, providing 132 mg of Potassium. Treat this as a reference - your stage and labs decide the real target.

How does Grapefruit juice compare to other fruits foods?

Compared with the typical Fruits food, Grapefruit juice has less Potassium - 132 mg per 100 g on record. Ratings on this site always use the food's own measured values.