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E-number E400 · Emulsifiers & thickeners
Alginic acid
Halal
- Typical source
- Brown seaweed
- Plain-language explanation
- E400 (Alginic acid) is a natural thickening and gelling agent extracted from the cell walls of brown seaweed. Because it is derived entirely from plant-based ocean vegetation, its production does not involve any animal sources or alcohol processing. Therefore, alginic acid is universally considered halal by all major certification bodies, including JAKIM, MUI, MUIS, ESMA, and HFA. Muslim consumers can safely consume products containing this ingredient without any dietary concerns.