Vegan

E401 is classified as vegan by the local ingredient taxonomy.

Names you may see on a label

Natriumalginatsodium alginateальгинат натрияalginian soduАльгінат натріюalginato de sódioNatriumalginaatalginato sódicoalginato de sodionatriumalginatalginato di sodiosodio alginatonatriumalginaattinatriumalginaattiaalginate de sodiumAlginan sodný

How to verify it

Check that the name refers to this exact ingredient and not a similar additive with a different source.