CheckVegan

Is Monosodium Glutamate vegetarian?

Monosodium Glutamate

Vegetarian Vegetarian
Vegan 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, Sodium hydrogen glutamate
INCI name Monosodium Glutamate
E number E621
INS number 621
CAS number 142-47-2
EC number 205-538-1
CosIng ID 79487
Last reviewed 16 April 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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