E-code guide
E403Ammonium Alginate
HalalThickener
E403

Ammonium Alginate

Thickener

SANHA, JAKIM Handbook 2010, and MUIS all classify this as halal.
Based on 3 cited authorities. Confidence: medium.

What authorities say

3 authorities on record
3say Halal

Why this verdict

E403 is ammonium alginate, the ammonium salt of alginic acid from brown seaweed, used as a thickener and emulsifier. SANHA, JAKIM Handbook 2010, and MUIS all classify E403 as halal. MUIS notes it is the ammonium salt of alginic acid (E400). E403 is halal.

Common questions

Is E403 halal?

Ammonium Alginate (E403) is classified halal. SANHA, JAKIM Handbook 2010, and MUIS classify it as halal.

What is E403 made from?

Ammonium Alginate (E403) is derived from plant sources.

Last reviewed by the HalalHQ research team in June 2026.