Tag: Kidney disease star fruit

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Is Star Fruit High in Acid? The Surprising Truth Behind the Tangy Taste

Jan 10, 2026 •

4 min read

Star fruit, or carambola, contains high levels of oxalic acid, with some tart varieties having a pH as low as 2.2. Is star fruit high in acid? Yes, but its acidity varies significantly based on ripeness and cultivar, ranging from mildly sweet to intensely sour.