John has had a 30-year career in sports nutrition. In 1990 he was part of the support team for the World Cup in his role as Head of Human Performance for the Football Association. He has worked for big corporates including GlaxoSmithKline and ran his own sports science business for fifteen years. He entered academia in 2009. In recent years he has been Chair of the London Regional Sports Board, a Non-Executive Director of UK Anti-Doping and Chair of British Ski and Snowboard among others. He has published several books on sport and running.