The appearance of fortified foods is similar to that of conventional foods (e.g. yoghurts, juices). They differ from these only in that nutritionally active substances such as vitamins, minerals, fatty acids or other nutrients are added. Regulation (EC) No 1925/2006 of the European Union on the addition of vitamins and minerals and of certain other substances to foods also applies to the fortification of foods in Germany. However, due to transitional measures laid down in the regulation, national regulations, such as the German Food and Feed Code (LFGB), must still be observed. Whether the fortification of a foodstuff requires a national official authorisation for marketing in Germany depends on which nutrients are added. For the addition of most minerals and trace elements as well as vitamins A and D, a specific authorisation is required in Germany – in deviation from European Union law. Under certain conditions, an exemption authorisation can be granted for the marketing of fortified foods or a general ruling can be issued by the competent German authorities.