Feed additives are products used in animalnutrition for purposes of improving the qualityof feed and the quality of food from animalorigin, or to improve the animals’ performanceand health, e.g. providing enhanced digestibilityof the feed materials. Feed additives may notbe put on the market unless authorisation hasbeen given following a scientific evaluationdemonstrating that the additive has no harmfuleffects, on human and animal health and on theenvironment