Potassium adipate

Potassium adipate is the potassium salt of adipic acid (E355), functioning as an acidity regulator and leavening acid component. It is the potassium counterpart to sodium adipate (E356), used in formulations where sodium reduction is a goal. In processed cheese, beverages, and baked goods it adjusts pH and improves texture without contributing sodium to the final product.

JECFA's ADI is 5 mg per kilogram body weight per day, shared with adipic acid and sodium adipate. Potassium adipate is metabolised to adipic acid and potassium — both normal metabolic components. No adverse effects have been identified at typical food additive concentrations, and the potassium contribution is nutritionally beneficial for most adults.

Potassium adipate is approved in the EU and most global markets. It is increasingly used in sodium-reduced formulations as a sodium-free alternative to sodium adipate. People with renal disease managing potassium intake should note its potassium content, but for healthy adults it is among the safer acidity regulators. There are no known health concerns at normal dietary exposure levels.