Dr Protima Deb is a Consultant Paediatric Gastroenterologist working at The Royal London Hospital. Her early paediatric training was at Guy’s and St Thomas’ Hospital in London, where she achieved Membership of the Royal College of Paediatrics in 2006. She was appointed to the Higher Specialist Training Programme in Paediatric Gastroenterology in The London Deanery and completed her training in 2014.

Dr Deb is a "self-confessed research enthusiast". Her specialist area of interest is inflammatory bowel disease. Her work looking at the microbiome in childhood Crohn’s disease was the subject of her doctoral thesis which she was awarded from Queen Mary University of London in 2019. She continues her research work with an honorary contract at Queen Mary University, based at the Blizard institute, where she continues to explore the field of microbiome and inflammatory bowel disease.