Potassium Citrate (E 332)

Last reviewed October 19, 2026

In plain words: Potassium citrate (E 332) refers to the potassium salts of citric acid. In food they adjust acidity and bind metals.

What the evidence review says

Potassium citrate is the potassium salt of citric acid, used to balance acidity. We found no notable concern for the citrate portion at food-use levels. The same potassium caveat as potassium chloride applies to people who retain potassium. A completed modern EFSA re-evaluation was not located.

No notable concern for the citrate portion at food-use levels under the JECFA group acceptable daily intake. The same potassium caveat as potassium chloride applies: in people who retain potassium, high intake from supplements, medicines or salt substitutes has been linked with hyperkalemia (high blood potassium). Medicinal uses of potassium citrate involve amounts far above typical additive levels. A completed modern EFSA re-evaluation of E 332 was not located.

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This page is for general education. It is not medical advice and does not replace advice from your doctor, pediatrician, allergist or registered dietitian. Research changes; we review these pages when new evidence or rules come out. Last reviewed October 19, 2026.