Potassium Citrate

Acids & Acidity RegulatorsCAS: 866-84-2

This is what the ingredient is.

Potassium citrate is a potassium salt of citric acid used as acidity regulator and potassium source. Better tolerated than potassium chloride for some applications.

Here is why it shows up on the label.

Acidity regulator, buffering agent, and potassium supplement. Used in beverages, jams, and processed foods. Less bitter taste than potassium chloride.

Here is what food agencies say.

The FDA lists it as Generally Recognized as Safe. Same potassium intake recommendations as potassium chloride: AI 2600-3400 mg/day. It is approved in the US, Europe (as E332), and Canada.

Here is what research has found.

Provides potassium and citrate. Citrate may help prevent kidney stones. Studies in Journal of Urology document kidney stone prevention. Generally better tolerated than potassium chloride.

Here are a few things worth knowing.

Same hyperkalemia risks as potassium chloride - dangerous for individuals with kidney disease or on certain medications. May cause GI upset. Generally safer taste profile than potassium chloride. Should be avoided by those with renal impairment.

Sources

  • FDA GRAS Database
  • J Urology 2006
  • NIH Potassium Fact Sheet

How to read this page

We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.

v1.0Updated 9/12/2026