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Potassium Hydrogen Carbonate

Also known as: E501ii, Potassium bicarbonate, potassium bicarbonate, E501

Low concern

Potassium bicarbonate is GRAS and is a recognized source of dietary potassium. Considered safe at typical food-additive levels with no ADI established by EFSA.

Found in

1,576 products

E-number

E501

Type

stabiliser

What it is

Potassium bicarbonate (KHCO3); alkaline mineral salt used as leavening and acid regulator.

Leavening agent, acidity regulator, low-sodium replacement for baking soda.

Why it's flagged

very high doses may affect electrolyte balance

What regulators actually say

"Potassium bicarbonate (KHCO3, CAS Reg. No. 298-14-6)... is generally recognized as safe when used in accordance with good manufacturing practice."

21 CFR 184.1613 - Potassium bicarbonate — accessdata.fda.gov

Regulatory status

United States — FDA

GRAS (21 CFR 184.1613).

European Union — EFSA

Approved (E 501); ADI 'not specified' (i.e., no numerical limit).

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