Panel of international experts want “game-changing” new definition and re-think on obesity epidemic

St Vincent's Private Hospital Northside

A new definition of obesity by a respected international commission could affect the use of prescription drugs that treat obesity, like Ozempic/Wegovy and Mounjaro, giving GPs more ‘clinical cover’ to be more discerning with patients who might be seeking the drug more for cosmetic than medical reasons, according to St Vincent’s Private Hospital experts.

 

The Global Commission on Clinical Obesity has proposed focussing less on the simple BMI number to ‘classify people’ and to instead prioritise how much body fat a patient has and what medical complications or co-morbidities they have which are often directly related to their obesity. They recommend doctors should be guided by 18 criteria for diagnosing clinical obesity, taking into account a range of problems from sleep apnoea to diabetes and liver disease. 

 

Australian doctors have welcomed the new approach, labelling it a “game-changer” which could “de-stigmatise obesity” and completely reshape the way that the national obesity epidemic is viewed and the way it’s treated clinically.

 

Instead of using the traditional measure of BMI (Body Mass Index) as a way to define obesity – which many doctors believe is a crude and imprecise measurement – some doctors are saying that in the wake of the Commission’s findings we should switch focus to ‘body fat quantity’ and the illnesses that people experience related to their obesity, many of them killer diseases.

 

And they recommend that the old-fashioned tape measure should be adopted more widely by clinicians who should simply measure a person’s waist as a better guide: if a woman’s waist is more than 89cm, she most likely has too much body fat, while for a man, the threshold would be a waistline of 102cm or more.

Dr Paige Lanyon Roberts

Dr Paige Lanyon-Roberts

Dr Paige Lanyon-Roberts is a Brisbane GP and Bariatric Doctor who owns and operates Metabolic Health and Weight Management Clinic, Medsurg Weight Loss, whose clinicians work closely with St Vincent’s Private Hospital Northside specialists. She says the proposed new definition of obesity is a game-changer that will impact significantly on the way GPs and surgeons treat obesity.

"Shifting the focus from BMI to assessing other metabolic health parameters helps reduce stigma and allows us to identify when excess weight is a medical concern rather than just a number on a scale,” says Dr Lanyon-Roberts.

“People live in larger bodies for many reasons, influenced by genetics and environmental factors, and weight management is often a lifelong, complex journey.”

St Vincent’s Private Hospital Northside (Brisbane) bariatric surgeon, Dr Rob Finch, of Total Upper GI Surgery welcomed the new definition and recommendations that would shift the focus from body appearance and a person’s weight or BMI, to their total wellness and specifically, any issues with illnesses or co-morbidities related to their obesity, such as diabetes.

“It’s important for people living with obesity to understand that there are inevitably long-term health consequences with an elevated risk of serious illness and disease as they grow older if they don’t act early on addressing their obesity either through lifestyle changes or with bariatric surgery,” says Dr Finch.

“We know that obesity is commonly associated with a wide range of metabolic disorders such as Type 2 diabetes, cardiovascular disease, fatty liver disease, chronic kidney disease and many cancers.” 

“There’s still some sort of stigma connected with bariatric surgery that it’s the easy or lazy way out but some people who are severely obese can only lose that significant amount of weight they need to, to improve their overall health, through surgery.”

Dr Robert Finch

Dr Robert Finch

Kyanne van Essen, a busy young mother of three and someone who has struggled to lose their post-children weight, is happy her GP, Dr Lanyon-Roberts is taking a holistic approach to her health and weight loss (with a target weight of 80kg, down from 130kg) which helps her to have a different relationship to diet and exercise and to focus on maintaining good health as she ages.


Like many women, Kyanne has tried a vast array of tips and tricks to lose weight including fad diets, fasting regimes, shakes, and different exercise regimes – all while juggling the busy life of a full-time working mother. 

Kyanne

Kyanne van Essen

The Brisbane nurse has been frustrated as she saw her weight climb steadily from her pre-family weight of 70kg to a peak of around 130kg after her third child.

“I was diagnosed with a fatty liver during one of my pregnancies and while I don’t have any major health issues, now I’m well aware of the fact that as I move into my 30s and especially 40s and 50s that it’s just a matter of time before the excess weight I’ve carried will cause other metabolic health issues for me if I don’t lose it and keep it off,” says Kyanne.

“I’ve learned through my new GP that I’m at a disadvantage when it comes to weight loss, having a slower metabolism which means that I burn less fat than many other people and I have to work much harder than the average woman to shift weight.”

Medsurg Weight Loss and St Vincent’s Private Hospital Northside will next month hold a free community health education webinar on obesity and associated diseases, featuring a panel of medical and surgical experts, including focussing on the treatment options for management of people who are overweight and obese. To register, CLICK HERE.

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