The Experts

Meet the experts behind the 40 Day Health Challenge—a team of Ireland's most trusted professionals dedicated to helping you transform your health and well-being.

From fitness training to nutrition, mental health, and medical advice, these renowned specialists bring years of expertise, passion, and practical experience to guide you every step of the way. 
     

Karl Henry is one of Ireland’s most recognised and leading personal trainers

Karl Henry is a name that is synonymous with health and training in Ireland. Karl has a BSc (hons) in Sports Science and Sports Management from University College Dublin, as well as two personal training qualifications: A.C.E and A.A.B.S. Karl hosts Ireland’s leading Health Podcast – The Real Health and was the fitness expert on RTE 1’s Operation Transformation for 17 seasons. Karl has written a number of books, most recently the best-seller “The Health Living Handbook” (Penguin Ireland). Karl has developed the 40 day health challenge fitness plan for beginners and people who are active.

Sophie Pratt is a CORU registered dietitian and a member of the Irish Nutrition and Dietetic Institute.

Sophie qualified with a BSc in Human Nutrition from UCD and Level 4 Certificate in Exercise Health and Fitness from University of Limerick . She obtained a MSc in Dietetics from University Ulster Coleraine. Sophie’s areas of expertise include weight management, fertility health and sporting performance as well as devising specialized diets for those with dietary issues such as irritable bowel syndrome, coeliac disease, diabetes among many others. She was the dietitian on RTE’s Operation Transformation. Sophie has created a 40 day healthy eating plan with recipes for main meals, breakfast, lunch and snack options.

Dr. Eddie Murphy is one Irelands leading clinical psychologists and Wellbeing advocates.

As a trusted voice, he was the psychologist on RTE’s Operation Transformation where his practical, respectful and hope orientated approach opened the hidden doors of the therapy room to all. Dr. Eddie is the author of the best seller ‘Becoming Your Real Self – A Practical Toolkit To Manage Everyday Problems’. (Penguin Ireland). He is passionate about promoting wellbeing for children, adults, families, communities and organisations. For the 40 Day Health Challenge Eddie introduces us to daily exercises to improve our mental wellbeing.

Dr. Sumi Dunne BM BSc (Hons) MICGP MSc FFSEM graduated from the University of Southampton.

Dr. Sumi undertook Neonatal intensive Care and Emergency Department Paediatrics training before undertaking specialist general practice (GP) at the Royal College of Surgeons in Ireland (RCSI). Since then, she has maintained both an academic and clinical career in General Practice, working as a Clinical Lecturer in the Department of General Practice RCSI and as a rural GP in County Laois. Dr. Sumi was the GP expert on RTÉ's Operation Transformation from 2019-2024 and she is the medical advisor on Virgin Media’s The Clinic For Well People. Dr. Sumi has a particular clinical interest in Women’s Health to include contraception, the peri/menopause journey, HRT prescribing together with reproductive and sexual health. For the 40 Day Health Challenge Dr. Sumi offered insightful medical advice and information to the first sixteen participants which can be viewed in the episodes.