A recent study reveals that patients who come off blockbuster weight-loss injections like Wegovy and Mounjaro tend to recover shed pounds at a significantly accelerated pace than those who stop traditional lifestyle programs.
Published data in a major medical journal points out that while obese individuals frequently drop about a fifth of their total mass while on the medication, the weight is regained at an estimated rate of 0.8 kg per month once they quit.
"People buying these drugs must be informed of the risk of quick rebound weight gain when the medication ends," cautioned lead investigator Dr. Susan Jebb.
This pace of recovery implies a reversion to starting mass within about 18 months.
Analyzing Treatments
The research, which looked at dozens of studies involving thousands of patients, compared the results of GLP-1 agonists with conventional dieting.
The team emphasize that individuals who shed pounds through dieting generally have a less rapid creep back—perhaps 0.1 kg a month—once they finish.
Understanding the Quick Regain
Doctors believe the way of the drugs explains the accelerated rebound.
GLP-1 drugs mimic a body's own chemical called GLP-1, which moderates appetite.
"Long-term administration of the hormone levels several times higher than normal may cause the body to generate a reduced amount of its own natural hormone, and could reduce sensitivity to its effects," said Dr. Adam Collins, a dietetics expert.
"Discontinuation of this GLP-1 'fix' leads to appetite is unsuppressed, making excessive eating far more likely."
A Chronic Disease?
The NHS suggest the injections for individuals with obesity-related health risks, alongside prescribed diet and exercise modifications.
Professionals say that, given the high risk of relapse, the therapy should be considered life-long.
This view is echoed by drug manufacturers, who say that the findings "highlight the chronic character of excess weight," akin to managing conditions like high blood pressure.
User Experiences
Individuals who have stopped the medication describe a powerful resurgence of cravings.
"It felt as if a trigger that goes on and you become extremely hungry," said a patient.
This challenge is compounded if users have not adopted sustainable dietary or behavioural changes during therapy.
Growing Adoption
Survey data indicate that a significant number of adults in the UK have used weight-loss jabs in the past year, with interest remaining high.
- Adoption is higher among females than men.
- The middle-aged age group shows the greatest level of interest.
- A large proportion obtain the drugs through private prescriptions rather than the NHS.
In conclusion, researchers emphasize that while these medications are effective tools for weight loss, they are not a permanent cure and lasting health benefits hinges on combined lifestyle support.
