Professor Mellanby was an invited speaker at the Mellanby Centre, University of Sheffield last week. The Mellanby centre was named in honour of Sir Edward Mellanby who was a leading researcher in vitamin D and bone biology based in Sheffield. The annual symposium provided an excellent forum for dissemination of recent research findings and celebrate recent accomplishment by the Centre. Professor Mellanby gave an overview of Sir Edward’s life and achievements and described how his research transformed public health 100 years ago. The picture shows Prof Mellanby alongside Prof Russell, Prof Eastwell and Prof Coleman following the lifetime membership of the Mellanby Centre ceremony.