Dr Paul Clayton graduated summa cum laude in Medical Pharmacology from Edinburgh University, prior to obtaining his PhD.

He is a Fellow of The Royal Society of Medicine and a former Senior Scientific Advisor to the UK government's Committee on the Safety of Medicines.

He has worked with leading doctors and clinical scientists at centres of clinical expertise in the UK and abroad, and trained the pharmacists in Britain' s largest chemist chain in preventative nutrition.

Dr Clayton has lectured at the Royal College of General Practitioners. He frequently presents at and chairs international conferences on nutrition and health.

His books include Health Defence and After Atkins.