Compassionate, Evidence-Based Weight Loss Care

Dr Jess Mok is a highly experienced NHS Consultant and Clinical Lead of one of London’s most established specialist weight management services. She offers a full range of surgical and medical options to help people lose weight, improve their health, and regain quality of life — all with a deeply compassionate, patient-first approach.

A Career Dedicated to Understanding Body Weight

With a PhD focused on the role of GLP-1 in weight loss after bariatric surgery, Dr Mok has dedicated her career to understanding how the body regulates weight. Her research has shaped a paradigm shift in obesity care — moving beyond outdated ideas of blame and willpower to recognise the powerful role of biology, hormones, and behaviour.

By tailoring treatment plans to each individual’s biology, Dr Mok helps patients achieve better, longer-lasting outcomes — whether through surgery, weight loss injections, or a combination of both.

Nationally Recognised Expertise

Dr Mok is lead author of BariOPTIMISE, a major clinical trial in post-surgical weight loss, and has published widely in peer-reviewed journals. She has contributed to national guidelines on nutrition before and after bariatric surgery, and is a recognised expert in clinical nutrition. This means she helps patients not only choose the right surgery — but also get the most out of it.

Fast Recovery, Lasting Results

Known for her meticulous surgical technique, Dr Mok performs all procedures using enhanced recovery protocols, which allow for faster healing, less pain, and quicker return to normal life. Patients frequently describe her as “calm, reassuring, and incredibly skilled,” with many highlighting the time she takes to listen and explain every step of their journey.

Support for Every Stage of the Journey

Dr Mok treats patients at every stage — from those considering weight loss surgery or medication for the first time, to those who’ve had surgery abroad or experienced less-than-ideal outcomes. Drawing on her academic expertise and clinical experience, she offers second opinions, revision surgery, and ongoing support with care that is both expert and empathetic.

Comprehensive Surgical Expertise

In addition to bariatric care, Dr Mok also provides advanced laparoscopic surgery for gallbladder disease, hernias, acid reflux, and skin lesion removal, with a focus on minimal downtime and excellent cosmetic and functional results.