New research indicates that people who come off blockbuster GLP-1 drugs like semaglutide or tirzepatide may regain reduced body mass much more quickly than those who halt traditional lifestyle programs.
Findings released in a leading health publication demonstrates that while obese individuals often shed about a fifth of their total mass while undergoing treatment, the weight returns at an estimated rate of 0.8 kg per month after stopping.
"Individuals using these drugs should be aware of the danger of quick weight regain when the medication is stopped," warns researcher Dr. Susan Jebb.
Such speed of recovery implies a return to pre-treatment weight in about 18 months.
Comparing Approaches
The study, which looked at dozens of trials involving thousands of participants, contrasted the results of the injectable medications with older methods.
Scientists point out that people who shed pounds through lifestyle changes alone typically see a slower creep back—perhaps 100 grams monthly—once they finish.
Explaining the Rapid Rebound
Experts believe the way of the drugs accounts for the amplified regain.
The injections imitate a natural hormone called GLP-1, which moderates feelings of fullness.
"Artificially providing the hormone levels far above than the body's typical production could lead to the body to generate a reduced amount of its own natural hormone, and may also lessen responsiveness to its actions," explained Dr. Adam Collins, a dietetics researcher.
"Discontinuation of this medication leads to appetite is unsuppressed, making binge eating far more likely."
An Ongoing Disease?
Health authorities advise the injections for individuals with obesity-related health risks, accompanied by prescribed lifestyle changes.
Many experts argue that, considering the likelihood of relapse, the therapy might need to be ongoing.
This perspective is echoed by pharmaceutical companies, who note that the results "highlight the persistent nature of excess weight," similar to managing diseases like diabetes.
User Experiences
People who have come off the medication report a powerful resurgence of appetite.
"It felt as if something activating and you become starving," said a patient.
This difficulty is exacerbated if users have not established lasting dietary or behavioural modifications during therapy.
Significant Adoption
Recent estimates indicate that millions of people in the UK have used these injections in the past year, with desire being substantial.
- Adoption is greater among women compared to men.
- 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, clinicians caution that while the jabs are powerful tools for shedding pounds, they are not a standalone cure and lasting health benefits hinges on combined lifestyle support.
