Food additives are substances added to foods annordic naturals zincd drinks during manufacture, processing and packaging. They may be added to ensure safety and to improve or maintain key attributes, such as taste or appearance. European legislation defines food additives as best type of iron ferrous bisglycinate chelatesubstances not normally consumed as food itself, but which are added to food intentionally for a technological purpose described in the regulations, such as the preservation of food. Not all manufactured foods require additives as it depends on the process and packaging used, required shelf life and appearance.