New research indicates that patients who come off new slimming jabs like Wegovy and Mounjaro can put back on reduced body mass at a significantly accelerated pace than those who stop traditional diet and exercise plans.
Published data in a prominent health publication points out that while overweight individuals frequently drop about a fifth of their body weight while on the medication, the weight returns at an average rate of nearly a kilo each month after stopping.
"People buying such treatments should be aware of the potential of rapid weight regain when the medication concludes," cautioned researcher Dr. Susan Jebb.
That rate of regain implies a reversion to pre-treatment weight within about one and a half years.
Weighing Approaches
The research, which looked at dozens of trials involving thousands of participants, contrasted the results of GLP-1 agonists with conventional dieting.
Researchers note that people who shed pounds through diet and exercise usually experience a more gradual weight regain—around 100 grams monthly—once they finish.
Explaining the Rapid Regain
Nutrition scientists propose the mechanism of the drugs accounts for the amplified regain.
The injections copy a natural hormone called GLP-1, which controls appetite.
"Long-term administration of GLP-1 concentrations several times higher than the body's typical production might result in the body to generate a reduced amount of its endogenous GLP-1, and may also diminish responsiveness to its actions," explained Dr. Adam Collins, a dietetics researcher.
"Discontinuation of this medication results in appetite is unsuppressed, making binge eating far more likely."
A Lifelong Condition?
Health authorities suggest the injections for people with weight-linked health risks, alongside recommended lifestyle changes.
Many experts contend that, given the high risk of weight regain, the treatment should be considered ongoing.
This view is supported by drug manufacturers, who state that the results "highlight the chronic character of obesity," comparing it to managing diseases like high blood pressure.
Patient Testimonies
People who have discontinued the jabs describe a intense return of appetite.
"I experienced something flipping and you become extremely hungry," recalled one woman.
The struggle is exacerbated if patients have not developed permanent lifestyle or habit changes during therapy.
Growing Use
Recent estimates suggest that a significant number of people in the UK have used weight-loss jabs in the past year, with desire continuing to grow.
- Adoption is more common among women compared to men.
- The 40s and 50s demographic shows the highest usage rates.
- A large proportion obtain the medications through private healthcare rather than the NHS.
Ultimately, researchers caution that while the jabs are potent tools for weight loss, they are not a magic cure and long-term success likely depends on integrated lifestyle support.
