E642 – Lysin hydrochloride
Flavour enhancerDescription
White or colorless crystalline powder, odorless
Notes
Lysine hydrochloride is a form of lysine, another essential amino acid that our bodies need but cannot produce on their own. It appears as a white or colorless crystalline powder and is naturally found in high-protein foods like meat, fish, dairy, and legumes. The commercial version is typically made through fermentation using specially selected bacteria or yeast, with hydrochloride (a simple salt form) added to make it more stable and easier to use in food products. This additive primarily serves as a nutritional supplement rather than a traditional flavor enhancer, though it can have some minor taste-modifying effects. You'll most commonly find it in protein supplements, nutritional bars, infant formulas, and fortified foods designed to boost protein quality. It's particularly important in products aimed at improving the nutritional value of plant-based proteins, since some vegetarian protein sources are naturally lower in lysine. Lysine hydrochloride is considered a natural nutritional compound since lysine is essential for human health. When produced through fermentation, it's generally suitable for vegetarians and vegans. It doesn't typically cause allergenic reactions and is widely recognized as safe by food regulators. However, people taking certain medications or those with kidney issues should consult healthcare providers before consuming large amounts through supplements, though normal food-level intake is not a concern.