L-Cysteine

Halal status: Source dependent

L-Cysteine status depends on its source. Toronto Public Health explicitly lists L-cysteine as an ingredient to avoid when from pork or non-Zabiha beef. IFANCA also flags cysteine hydrochloride for investigation. Synthetic or plant-derived L-cysteine is Halal. Always verify the source with the manufacturer.

Halalyn ingredient ruling. Open this page in a browser for the full interactive view, references, and related tools.