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Typical source

Synthetic or gelatin hydrolysis

Plain-language explanation

E640, or glycine, is a simple amino acid commonly used in the food industry as a flavor enhancer and stabilizer. It is naturally found in protein-rich foods like meat and gelatin, but commercially, it is most often produced synthetically or through the fermentation of plant-based sugars. Its halal status depends entirely on the source and production method, as it can also be derived from animal proteins like pork or non-halal slaughtered beef. According to major certification bodies like JAKIM, MUI, MUIS, ESMA, and HFA, glycine is only considered halal if it is verified to be from plant, synthetic, or halal-slaughtered animal origins. Therefore, you should look for a trusted halal certification on the final product to ensure it does not come from a prohibited source.