New research suggests that people who stop using popular GLP-1 drugs like semaglutide or tirzepatide may regain reduced body mass far faster than those who end conventional lifestyle plans.
Findings released in a major medical journal points out that while overweight people frequently drop substantial amounts of their total mass while undergoing treatment, the weight is regained at an average rate of nearly a kilo each month upon discontinuation.
"People using such medications need to be cognizant of the risk of fast weight regain when the therapy concludes," warns lead investigator Dr. Susan Jebb.
Such speed of recovery means a return to pre-treatment weight in about a year and a half.
Comparing Treatments
The analysis, which reviewed dozens of trials involving thousands of participants, contrasted the results of these new drugs with older methods.
Researchers point out that people who lose weight through lifestyle changes alone generally experience a more gradual creep back—perhaps 0.1 kg a month—after stopping.
Explaining the Fast Rebound
Nutrition scientists suggest the mode of action of the jabs is key to understanding the accelerated rebound.
These medications copy a natural hormone called GLP-1, which moderates appetite.
"Sustained high doses of the hormone concentrations several times higher than normal might result in the body to generate a reduced amount of its own natural hormone, and may also lessen sensitivity to its effects," said Dr. Adam Collins, a dietetics researcher.
"Discontinuation of this medication means hunger is unsuppressed, making excessive eating a significant risk."
An Ongoing Disease?
The NHS suggest the injections for people with obesity-related health risks, alongside recommended diet and exercise modifications.
Professionals argue that, due to the significant potential of relapse, the therapy is often long-term.
This view is reinforced by drug manufacturers, who state that the results "emphasize the chronic character of excess weight," comparing it to managing diseases like high blood pressure.
Patient Testimonies
Individuals who have stopped the jabs report a powerful return of appetite.
"It was like something that goes on and I was suddenly ravenous," recalled one woman.
This challenge is exacerbated if users have not developed sustainable lifestyle or habit modifications during treatment.
Widespread Use
Recent estimates suggest that a significant number of people in the UK have used weight-loss jabs in the last 12 months, with desire remaining high.
- Adoption is more common among women than males.
- The 40s and 50s age group shows the highest usage rates.
- A large proportion obtain the medications through private prescriptions rather than public health services.
Finally, researchers caution that while these medications are powerful tools for shedding pounds, they are not a standalone cure and lasting health benefits likely depends on integrated lifestyle changes.
