Vitamins and minerals
When I started studying veterinary medicine in Utrecht 50 years ago, as a 17-year-old. On the one hand, it was indicated that vitamins played an important role in cell metabolism, but on the other hand, the risk of deficiencies was rather laconic. At the time, it was believed that deficiencies at that time were absolutely impossible and that diseases such as Scurvy, Rickets, Pernicious anaemia and the like, diseases that express the end stage of a vitamin deficiency, were something from a bygone era.
