The feed additive is known to provide antioxidant health benefits, but concerns have been raised about the two potential sources for it: from krill in the wild, or from purely synthetic methods of production. ###>Avec l'aide de David Higgs, nutritionniste des poissons, les chercheurs ont fabriqué leurs propres moulées à partir d'ingrédients obtenus de diverses entreprises, notamment EWOS Canada.