New research suggests that people who come off popular slimming jabs like Wegovy and Mounjaro may regain reduced body mass at a significantly accelerated pace than those who stop conventional lifestyle programs.
Published data in a prominent health publication shows that while overweight individuals can lose about a fifth of their total mass while on the medication, the weight is regained at an average rate of nearly a kilo each month upon discontinuation.
"Individuals buying such treatments must be informed of the danger of fast rebound weight gain when the medication is stopped," warns researcher Dr. Susan Jebb.
Such speed of regain implies a return to starting mass in about 18 months.
Comparing Therapies
The analysis, which looked at dozens of trials involving thousands of patients, compared the outcomes of GLP-1 agonists with conventional dieting.
Researchers point out that individuals who lose weight through lifestyle changes alone typically have a less rapid creep back—around 100 grams monthly—post-intervention.
Understanding the Fast Regain
Doctors suggest the way of the drugs explains the accelerated regain.
The injections imitate a natural hormone called GLP-1, which helps regulate feelings of fullness.
"Artificially providing GLP-1 levels several times higher than normal may cause the system to produce less of its own natural hormone, and may also lessen sensitivity to its effects," explained Dr. Adam Collins, a nutrition specialist.
"Discontinuation of this GLP-1 'fix' means hunger is no longer kept in check, making overeating much more probable."
An Ongoing Disease?
Medical guidelines suggest the injections for people with weight-linked health risks, accompanied by recommended diet and exercise modifications.
Professionals contend that, given the high risk of weight regain, the treatment might need to be life-long.
This perspective is supported by pharmaceutical companies, who say that the findings "highlight the persistent character of obesity," akin to managing conditions like high blood pressure.
User Experiences
Users who have discontinued the medication describe a powerful return of appetite.
"It felt as if a switch that goes on and you become ravenous," recalled an individual.
The struggle is worsened if individuals have not established lasting lifestyle or habit modifications during therapy.
Widespread Interest
Survey data suggest that a significant number of adults in the UK have used weight-loss jabs in the last 12 months, with demand being substantial.
- Use is higher among females than men.
- The middle-aged age group shows the highest level of interest.
- A large proportion obtain the drugs through private healthcare rather than the NHS.
Finally, clinicians emphasize that while the jabs are potent tools for shedding pounds, they are not a standalone fix and maintained weight loss likely depends on ongoing lifestyle changes.
