Our Dietitians

Sophie Medlin

Sophie Medlin is a well-recognised consultant dietitian in London with expertise in gastrointestinal and colorectal health. She worked in acute hospitals specialising in gastrointestinal diseases before moving into academia, where she worked as a lecturer at King’s College London. Sophie is a go-to spokesperson for media when it comes to evidence-based nutrition, regularly featuring in print, broadcast and social media.


Sophie has specialist knowledge and skills in the management of medical conditions such as irritable bowel syndrome (IBS), colorectal dysfunction, diverticular disease and polycystic ovarian syndrome.  


Sophie works as a consultant in product development for the manufacture of vitamins and probiotics and enjoys applying her academic research skills in the commercial sector. 

Contact Sophie: sophie@citydietitians.co.uk

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Dr Nicola Guess

Dr. Nicola Guess is a senior lecturer (associate professor) at the University of Westminster, a Research Fellow at King’s College London and outgoing Head of Nutrition at the Dasman Diabetes Institute in Kuwait. She has a PhD from Imperial College London. Her primary research interests are in the prevention and management of type 2 diabetes. She is a recognised world-expert in the effect of nutrition on the pathophysiology of type 2 diabetes.


Dr Guess is a member of the NICE expert committee; a member of the Diabetes UK Clinical Study Group, which sets the agenda for research for the prevention and management of type 2 diabetes in the UK; and was previously a Winston Churchill Travel Scholar investigating approaches to

type 2 diabetes prevetion in the UK and China; a 2018 National Institute of Clinical Excellent (NICE) scholar investigating meal provision for inpatients with diabetes; a Diabetes UK Academic Health Partnership Fellow investigating the role of diet in the prevention of type 2 diabetes; a member of the NICE guidelines committee for type 2 diabetes prevention in the UK; and the director of Kings College London courses on diet and diabetes.


Contact Nicola: nicola@citydietitians.co.uk

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Dr Rona Antoni

Dr Rona Antoni is a registered dietitian and nutrition research scientist at the University of Surrey. Her primary research interests include intermittent fasting (e.g. the 5:2 diet, time-restricted feeding) and the health effects of dietary fat.


Rona is considered one of the world-leading experts in intermittent fasting, regularly presenting both nationally and internationally. Her research has won her a number of awards from the Nutrition Society and the European Association for the Study of Obesity.

Prior to her PhD, Rona had a successful career in the NHS working as a general dietitian as well as a specialist in weight management and diabetes.


Chloe Elliott

Chloe Elliott is a specialist paediatric dietitian working in a world-leading NHS children's hospital in London. She became interested in nutrition as a teenager and followed this passion to university, where she earned her degree. Seeing as food was her entire life, being a dietitian seemed like the right career for her!

Chloe's paediatric career started Somerset where she worked in a small district hospital. She spent her first year working in a general paediatric ward mainly seeing babies and children with many food allergies, faltering growth and fussy eating. Following this, she spent time working in different specialist children hospitals gaining experience in a number of specialist areas, including neurology, ketogenics, general medicine, neuromuscular and critical care.

In Chloe's current role she sees patients in both an inpatient and outpatient setting, providing evidence-based advice to optimise children's nutrition. 

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Dr Adrian Brown

Dr Brown is a NIHR Research Fellow (Specialist Dietitian/Lecturer) within the Centre of Obesity Research at University College London. His research interests centre around obesity, type II diabetes, bariatric surgery and the use of formula-based diets in a variety of different patient populations. His PhD investigated the role of formula low energy diets within obese type II diabetes patients treated with insulin. 


Dr Brown qualified from Leeds Metropolitan University and furthered his studies with an MSc in Nutrition and Dietetics. He has specialised in weight management and bariatrics for the last 13 years. Dr Brown has spoken both nationally and internationally on dietary management of bariatric surgery, weight management and formula low energy diets, and is currently the Vice-Chair of the Specialist Obesity Group for the British Dietetic Association.


Dr Rachel Gibson

Dr. Rachel Gibson is a Registered Dietitian and lecturer in the Department of
Nutritional Sciences at King’s College London. Rachel’s research aims to
understand how occupational factors, such as the work environment and working
hours influence our diet and health.

Rachel qualified as a Dietitian from King’s College London and completed her PhD
at Imperial College London, where she investigated how working hours influenced
dietary intake and cardio-metabolic health in British police force employees. Rachel
is accredited by the British Dietetic Association Work Ready Programme to deliver
corporate nutritional wellbeing programmes. As part of her academic role, Rachel
actively works to strengthen the evidence around workplace nutrition and health.

Prior to training as a Dietitian, Rachel worked in senior management roles across
various industries including the food service sector. Rachel’s business management
experience, dietetic training and academic career provide a unique skill set for
research and the translation of evidence to improve employee and organisational
health and wellbeing.


Contact Us

City Dietitians

Nimaya Mind Station

69 Farringdon Road

 Farringdon, London


020 7632 7582

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