New research reveals that people who stop using popular weight-loss injections like Mounjaro or Wegovy may regain lost weight much more quickly than those who stop traditional diet and exercise regimens.
Published data in a prominent health publication points out that while overweight individuals frequently drop substantial amounts of their body weight while undergoing treatment, the weight comes back at an estimated rate of nearly a kilo each month upon discontinuation.
"Users buying such drugs must be aware of the danger of quick rebound weight gain when the treatment concludes," stated lead investigator Dr. Susan Jebb.
That rate of regain suggests a reversion to starting mass in about 18 months.
Weighing Approaches
The analysis, which reviewed 37 of trials involving thousands of patients, contrasted the outcomes of GLP-1 agonists with conventional dieting.
The team point out that people who lose weight through dieting typically see a slower weight regain—perhaps 100 grams monthly—once they finish.
Understanding the Quick Regain
Doctors propose the mode of action of the drugs is key to understanding the heightened weight return.
GLP-1 drugs mimic a natural hormone called glucagon-like peptide-1, which helps regulate hunger.
"Artificially providing the hormone concentrations several times higher than normal could lead to the system to produce less of its own natural hormone, and may also lessen sensitivity to its effects," explained Dr. Adam Collins, a nutrition researcher.
"Discontinuation of this hormone supplement leads to hunger is uncontrolled, making binge eating a significant risk."
A Lifelong Disease?
Health authorities recommend the injections for individuals with obesity-related health risks, accompanied by prescribed lifestyle changes.
A number of clinicians say that, due to the significant potential of weight regain, the therapy is often long-term.
This opinion is echoed by pharmaceutical companies, who say that the findings "highlight the persistent nature of excess weight," similar to managing conditions like high blood pressure.
Patient Experiences
People who have come off the medication explain a intense resurgence of hunger.
"I experienced a switch activating and you're instantly extremely hungry," described an individual.
This challenge is exacerbated if users have not established lasting lifestyle or habit changes during treatment.
Widespread Interest
Figures suggest that millions of people in the UK have used weight-loss jabs in the past year, with demand remaining high.
- Adoption is more common among females than men.
- The middle-aged age group shows the greatest level of interest.
- Many obtain the drugs through private healthcare rather than public health services.
Finally, researchers caution that while the jabs are powerful tools for weight loss, they are not a magic fix and long-term success relies on integrated lifestyle support.
