Fresh analysis indicates that individuals who come off popular slimming jabs like Wegovy and Mounjaro can put back on shed pounds far faster than those who halt traditional lifestyle regimens.
Published data in a leading medical journal shows that while overweight individuals often shed substantial amounts of their body weight while undergoing treatment, the mass returns at an average rate of 0.8 kg per month once they quit.
"People buying these medications need to be informed of the potential of rapid rebound weight gain when the medication ends," cautioned expert Dr. Susan Jebb.
This pace of recovery implies a reversion to original mass within about one and a half years.
Comparing Approaches
The study, which reviewed dozens of trials involving thousands of participants, compared the outcomes of GLP-1 agonists with other pills.
Scientists note that individuals who lose weight through dieting typically experience a less rapid weight regain—around 0.1 kg a month—after stopping.
Understanding the Fast Rebound
Experts suggest the mode of action of the injections explains the accelerated weight return.
GLP-1 drugs copy a body's own chemical called glucagon-like peptide-1, which controls feelings of fullness.
"Sustained high doses of GLP-1 concentrations far above than normal may cause the body to generate a reduced amount of its own natural GLP-1, and may also diminish sensitivity to its effects," noted Dr. Adam Collins, a nutrition specialist.
"Discontinuation of this GLP-1 'fix' results in hunger is no longer kept in check, making binge eating far more likely."
An Ongoing Issue?
Health authorities advise the injections for individuals with obesity-related medical conditions, accompanied by prescribed diet and exercise modifications.
Professionals say that, given the significant potential of weight regain, the treatment is often long-term.
This opinion is echoed by drug manufacturers, who note that the findings "highlight the chronic character of excess weight," comparing it to managing conditions like diabetes.
Patient Accounts
Individuals who have stopped the medication describe a powerful return of hunger.
"I experienced a trigger flipping and you're instantly extremely hungry," recalled an individual.
The struggle is exacerbated if individuals have not developed permanent dietary or behavioural modifications during therapy.
Significant Interest
Figures indicate that a significant number of adults in the UK have used weight-loss jabs in the last 12 months, with demand continuing to grow.
- Adoption is greater among women than men.
- The middle-aged demographic shows the greatest level of interest.
- Many obtain the drugs through private healthcare rather than the NHS.
Ultimately, clinicians emphasize that while the jabs are effective agents for weight loss, they are not a permanent fix and lasting health benefits likely depends on integrated lifestyle changes.
