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How Much Citric Acid Is in a Grapefruit?

How Much Citric Acid Is in a Grapefruit?
A grapefruit grows from a tree branch. Photo Credit: erdinhasdemir/iStock/Getty Images

Citrus fruits, such as grapefruit, contain citric acid. The exact amount of citric acid in one grapefruit will depend on a number of factors, most importantly the size of the fruit itself. By weight, grapefruits provide more citric acid than oranges but less than lemons or limes.

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Citric Acid Content

Grapefruit juice contains about 25 grams of citric acid per liter, or 1,000 grams, of juice, according to a study published in the "Journal of Endourology" in March 2008. Each small grapefruit contains about 182 grams of juice, which means it has approximately 5 grams of citric acid. A medium grapefruit has about 233 grams of juice, so it provides approximately 6 grams of citric acid, and a large grapefruit contains about 302 grams of juice and provides approximately 8 grams of citric acid.

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