E-code guide
E333Calcium Citrates
DoubtfulAcidity regulator
E333

Calcium Citrates

Acidity regulator

JAKIM Handbook 2010 and MUIS classify as doubtful; SANHA classifies as halal.
Based on 3 cited authorities. Confidence: medium.

What authorities say

3 authorities on record
2say Doubtful1says Halal

Why this verdict

E333 is calcium citrate, a calcium salt of citric acid used as an acidity regulator, firming agent, and calcium fortifier. SANHA classifies E333 as Halaal. JAKIM Handbook 2010 rules E333 halal only when the calcium is not obtained from bones. MUIS marks E333 as syubhah, noting it is the calcium salt of citric acid (E330). Because the calcium source is rarely disclosed on the label, E333 is doubtful by default.

Common questions

Is E333 halal?

Calcium Citrates (E333) is classified doubtful. JAKIM Handbook 2010 and MUIS classify it as doubtful; SANHA classifies it as halal.

What is E333 made from?

Calcium Citrates (E333) is derived from plant sources.

Last reviewed by the HalalHQ research team in June 2026.