allergen
A normally harmless substance, such as an ingredient in a foodstuff, that causes an (immediate) allergic reaction in a susceptible person.
All official European Union website addresses are in the <b>europa.eu</b> domain All official European Union website addresses are in the <b>europa.eu</b> domainA normally harmless substance, such as an ingredient in a foodstuff, that causes an (immediate) allergic reaction in a susceptible person.