Fresh analysis suggests that people who come off new GLP-1 drugs like Wegovy and Mounjaro tend to recover lost weight far faster than those who stop traditional lifestyle regimens.
Published data in a major health publication demonstrates that while overweight people often shed a large proportion of their total mass while on the medication, the weight returns at an estimated rate of nearly a kilo each month upon discontinuation.
"Individuals buying these drugs need to be informed of the danger of fast rebound weight gain when the medication concludes," warns researcher Dr. Susan Jebb.
This pace of recovery suggests a return to pre-treatment mass in about one and a half years.
Comparing Therapies
The research, which looked at dozens of studies involving thousands of patients, contrasted the results of the injectable medications with older methods.
Scientists note that individuals who lose weight through dieting generally see a less rapid creep back—approximately 100 grams monthly—after stopping.
Understanding the Fast Rebound
Experts propose the way of the injections accounts for the heightened regain.
The injections imitate a body's own chemical called glucagon-like peptide-1, which controls appetite.
"Artificially providing the hormone levels far above than normal could lead to the body to generate a reduced amount of its endogenous GLP-1, and could reduce responsiveness to its actions," noted Dr. Adam Collins, a nutrition expert.
"Withdrawal of this hormone supplement leads to hunger is uncontrolled, making excessive eating far more likely."
A Chronic Condition?
Medical guidelines recommend the jabs for people with weight-linked medical conditions, accompanied by recommended diet and exercise modifications.
Professionals argue that, given the high risk of weight regain, the therapy might need to be ongoing.
This view is reinforced by drug manufacturers, who note that the findings "highlight the long-term character of excess weight," similar to managing conditions like hypertension.
User Experiences
Individuals who have discontinued the medication describe a powerful return of appetite.
"I experienced something activating and you're instantly extremely hungry," said one woman.
This challenge is exacerbated if individuals have not developed permanent lifestyle or habit modifications during treatment.
Significant Interest
Figures indicate that a significant number of adults in the UK have tried weight-loss jabs in the past year, with interest continuing to grow.
- Adoption is more common among women than males.
- The 40s and 50s age group shows the greatest level of interest.
- A large proportion access the medications through private prescriptions rather than the NHS.
Finally, experts emphasize that while these medications are effective tools for weight loss, they are not a standalone fix and maintained weight loss hinges on integrated lifestyle support.