Current knowledge in species-related bioavailability of selenium in food

► We reviewed impact of speciation on Se bioavailability in food. ► Se species identified in food are mostly under organic form. ► Inorganic Se is rather present in Se-enriched products than in natural food. ► Inorganic Se is quickly metabolised but less retained and more toxic than organic Se. ► Organic Se is preferred for long term Se intake.