A specialist clinic built on compassion
Healing with compassion for body, mind and soul
The London Obesity Clinic is a family-run private specialist practice, part of Simplyweight, providing expert care for obesity, diabetes and endocrine conditions.
A family business built on compassion
The London Obesity Clinic is owned and run by Simplyweight, our family business. It began with a simple frustration: a storm of fad diets and misinformation, and people struggling with their weight being told little more than “eat less, move more”.
Dr Chinnadorai Rajeswaran had already helped thousands of patients with obesity and related conditions such as Type 2 Diabetes, and what was clear was that the same advice will never work for everyone. He founded the clinic with his daughter Kiruthika, who leads our vision, creative and digital work, and his wife Kala, our Managing Director, whose voice guides our healing meditations.
As practising kriya yogis, the family blends science with spiritual living in their own lives and translates that into the care we offer — nuanced, specialist and free of shame. Kiruthika's personal writing lives at Shunya.
Whole-person healing for body, mind & soul
We believe that obesity is not a lifestyle choice — it is a complex chronic condition driven by interconnected metabolic, inflammatory, hormonal and emotional factors. Lasting change requires understanding these complexities, not simply prescribing a diet.
Our vision is to provide world-class specialist care that treats the whole person. We combine evidence-based medicine with genuine compassion, offering patients a path to sustainable health improvement.
We are committed to making specialist obesity care accessible — not just to patients in London, but to those around the world who deserve expert guidance on their health journey.
A Family Business
Simplyweight is built and self-funded by one family, united by compassion and a genuine desire to heal.
Global Reach
Patients from over 30 countries trust our specialist care, both in-person and online.
Specialist-Led
All clinical care is overseen by Dr Raj, a specialist endocrinologist with over thirty years experience in the fields of obesity, diabetes and endocrinology.
Where that compassion goes
We spend our working lives thinking about food. Some of what we earn goes towards food for people who don't have enough of it, in the communities around both our clinics.
Most of it goes unrecorded, because that is the spirit it is done in. We keep a record anyway.
See how we give back →
FRCP (UK)
Fellow, Royal College of Physicians
- MBBS
- MRCP (UK)
- MSc (Diabetes)
- CCT General (Internal) Medicine
- CCT Diabetes & Endocrinology
Dr Chinnadorai Rajeswaran
Specialist Endocrinologist — MBBS MRCP FRCP
Dr Rajeswaran (Dr Raj) has over years of experience in obesity medicine, diabetes and endocrinology. He trained in Leeds, holds Certificates of Completion of Training in General Internal Medicine and Diabetes & Endocrinology, and is a Fellow of the Royal College of Physicians, London.
For more than 25 years he worked across several NHS trusts, serving as clinical lead for obesity and leading a large multidisciplinary specialist weight-management service. He helped establish specialist services in the UK and overseas, including the Tier 3 service at York Hospitals NHS Trust, and founded the National Diabesity Forum in 2008.
His clinical interests include complex severe obesity, diabetes, thyroid and reproductive hormone concerns, menopause and weight regain after bariatric surgery. His approach brings together a detailed history, appropriate investigations and a plan explained clearly to the patient and their GP.
He leads The London Obesity Clinic, with consultations at Ten Harley Street, Claremont Hospital Sheffield, Nuffield Hospital Leeds and by video. Care at our Chennai clinic is under his clinical leadership as Medical Lead.
Research & authorship
Dr Raj co-authored simplybariatrics: The Ultimate Guide to Weight Loss Surgery and contributed chapters on obesity and medical problems after bariatric surgery to specialist medical texts. His research publications span diabetes, bariatric care, mental health and complex severe obesity.
Research and publications →An international expert speaker
He lectures across the UK, Europe and Asia, speaking at conferences and teaching GPs, nurses and specialist registrars about diabetes, weight management and diabesity. He has contributed to an All-Party Parliamentary Group discussion on childhood obesity and supported the establishment of a specialist obesity service in Coimbatore.
Professional profiles & patient reviews
Weight gain is rarely a single issue, but the result of interconnected metabolic, inflammatory and emotional factors. True healing comes from understanding these complexities and supporting the whole person — body, mind and soul — with compassion.
Dr Raj
Associations & memberships
- Royal College of Physicians
- Society for Endocrinology
- Association of British Clinical Diabetologists
- Diabetes UK
- Association for the Study of Obesity
- British Menopause Society
- Indian Medical Association
- Research Society for the Study of Diabetes in India
- General Medical Council registration
- National Diabesity Forum — Founder & Chair
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