Is E641 Halal?
E641 (L-leucine) is an amino acid used to bring out flavour. It can be made by fermentation or taken from animal sources such as hair or feathers, and the label rarely says which.
Hanafi, Shafi, Maliki, Jafari, Hanbali — their opinion: they prefer a clearly non-animal source to be named.
Follow your own scholar.
Guidance for Muslims
E641 has a doubtful status. It can be derived from either plant or animal sources. Without specific certification, the origin cannot be verified. When in doubt, avoid.
Common Products Containing E641
This additive is commonly found in bread, baked goods, margarine, ice cream, chocolate, and processed foods. Always check the label or scan with HalalCheck.