@heenimakira well the fda site says it use to be made from seaweed, but its also made by fermenting crap https://www.fda.gov/food/food-additives-petitions/questions-and-answers-monosodium-glutamate-msg i also saw a random video that claimed to show you how to make msg at home
also technically everything is chemicals, even water, your urine or the dirt you walk around on