Is Monosodium Glutamate vegan?

Monosodium Glutamate

Vegan

Monosodium glutamate (MSG) is the sodium salt of glutamic acid, used as a flavour enhancer. It is produced commercially via bacterial fermentation of carbohydrate sources such as molasses or starch with ammonium salts, though it was originally isolated from seaweed.

Also known as Ajinomoto, Glutamic acid monosodium salt, MSG, Sodium glutamate
E number E621
CAS number 142-47-2
EC number 205-538-1
Last reviewed 16 April 2026

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