Fresh analysis indicates that individuals who discontinue blockbuster GLP-1 drugs like Wegovy and Mounjaro tend to recover shed pounds at a significantly accelerated pace than those who stop traditional lifestyle programs.
Findings released in a leading medical journal demonstrates that while obese individuals can lose about a fifth of their body weight while using the jabs, the weight returns at an average rate of 0.8 kg per month once they quit.
"Individuals purchasing these treatments need to be cognizant of the danger of quick weight regain when the therapy concludes," stated lead investigator Dr. Susan Jebb.
That rate of regain suggests a return to original mass within about one and a half years.
Analyzing Treatments
The research, which examined 37 of studies involving over 9,000 of patients, contrasted the effects of GLP-1 agonists with other pills.
Researchers emphasize that individuals who shed pounds through diet and exercise generally have a more gradual weight regain—perhaps 0.1 kg a month—once they finish.
The Reason for the Fast Regain
Nutrition scientists believe the mode of action of the injections accounts for the amplified rebound.
These medications imitate a natural hormone called glucagon-like peptide-1, which helps regulate hunger.
"Long-term administration of GLP-1 concentrations far above than normal may cause the system to produce less of its own natural GLP-1, and may also lessen sensitivity to its effects," explained Dr. Adam Collins, a dietetics expert.
"Discontinuation of this hormone supplement leads to appetite is unsuppressed, making binge eating far more likely."
A Lifelong Condition?
The NHS recommend the injections for people with weight-linked health risks, alongside prescribed lifestyle changes.
A number of clinicians argue that, given the significant potential of relapse, the therapy should be considered long-term.
This perspective is supported by pharmaceutical companies, who state that the results "emphasize the chronic character of excess weight," comparing it to managing conditions like high blood pressure.
Patient Experiences
People who have discontinued the medication report a sudden resurgence of appetite.
"It felt as if a trigger flipping and I was suddenly ravenous," described one woman.
This difficulty is exacerbated if patients have not established permanent lifestyle or habit changes during treatment.
Significant Use
Figures indicate that millions of adults in the UK have tried weight-loss jabs in the past year, with demand remaining high.
- Use is higher among females than males.
- The 40s and 50s demographic shows the highest level of interest.
- Many obtain the medications through private healthcare rather than the NHS.
Finally, researchers stress that while these medications are powerful tools for weight loss, they are not a standalone cure and lasting health benefits relies on combined lifestyle support.
