A recent study indicates that patients who come off blockbuster slimming jabs like Wegovy and Mounjaro tend to recover reduced body mass far faster than those who stop conventional lifestyle regimens.
Research printed in a prominent medical journal points out that while obese people can lose a large proportion of their total mass while using the jabs, the weight returns at an average rate of 0.8 kg per month after stopping.
"Individuals using such medications should be aware of the potential of fast weight regain when the therapy ends," warns expert Dr. Susan Jebb.
Such speed of recovery implies a return to pre-treatment mass in about one and a half years.
Weighing Treatments
The analysis, which looked at dozens of trials involving thousands of participants, contrasted the results of GLP-1 agonists with conventional dieting.
Scientists emphasize that individuals who lose weight through lifestyle changes alone usually experience a less rapid creep back—around 0.1 kg a month—post-intervention.
Understanding the Fast Regain
Doctors believe the mode of action of the injections explains the accelerated weight return.
These medications imitate a body's own chemical called GLP-1, which controls hunger.
"Sustained high doses of the hormone concentrations several times higher than normal may cause the body to produce less of its own natural hormone, and may also diminish sensitivity to its actions," said Dr. Adam Collins, a dietetics specialist.
"Stopping of this medication means hunger is no longer kept in check, making excessive eating a significant risk."
A Lifelong Disease?
The NHS advise the jabs for individuals with obesity-related medical conditions, alongside prescribed lifestyle changes.
Many experts argue that, due to the significant potential of relapse, the treatment might need to be ongoing.
This perspective is reinforced by pharmaceutical companies, who say that the findings "highlight the long-term character of obesity," comparing it to managing diseases like diabetes.
User Experiences
Individuals who have come off the medication describe a sudden return of hunger.
"It felt as if something that goes on and I was suddenly ravenous," said a patient.
The struggle is exacerbated if users have not adopted sustainable lifestyle or habit modifications during therapy.
Growing Adoption
Figures show that millions of adults in the UK have used these injections in the past year, with demand continuing to grow.
- Adoption is greater among women compared to men.
- The middle-aged age group shows the highest level of interest.
- A large proportion obtain the medications through private healthcare rather than public health services.
Ultimately, clinicians stress that while these medications are powerful tools for weight loss, they are not a permanent cure and maintained weight loss relies on integrated lifestyle management.
