John Clark is a Consultant Physician at the West Suffolk Hospital and a Fellow of Wolfson College, Cambridge. He trained in medicine at the University of Glasgow, qualifying in 1979. His specialty training in Diabetes and Endocrinology took place at Addenbrookes Hospital and the University of Bristol, where he was a Lecturer in Medicine. He is an examiner for the Royal College of Physicians and the University of Cambridge. He is keen sportsman.