New research reveals that individuals who come off new GLP-1 drugs like semaglutide or tirzepatide may regain reduced body mass far faster than those who end traditional lifestyle programs.
Published data in a prominent health publication demonstrates that while obese individuals often shed a large proportion of their total mass while undergoing treatment, the weight comes back at an estimated rate of nearly a kilo each month upon discontinuation.
"People using these medications should be informed of the risk of rapid rebound weight gain when the treatment ends," stated expert Dr. Susan Jebb.
That rate of recovery implies a return to starting weight within about a year and a half.
Weighing Approaches
The study, which reviewed dozens of studies involving over 9,000 of participants, contrasted the effects of GLP-1 agonists with conventional dieting.
Researchers note that individuals who lose weight through dieting typically see a more gradual weight regain—approximately 0.1 kg a month—once they finish.
The Reason for the Rapid Rebound
Doctors propose the way of the injections accounts for the accelerated rebound.
The injections mimic a body's own chemical called glucagon-like peptide-1, which helps regulate appetite.
"Artificially providing the hormone levels far above than normal might result in the system to generate a reduced amount of its own natural hormone, and may also lessen responsiveness to its actions," said Dr. Adam Collins, a nutrition expert.
"Withdrawal of this medication results in hunger is no longer kept in check, making excessive eating a significant risk."
An Ongoing Condition?
The NHS suggest the jabs for individuals with weight-linked health risks, accompanied by recommended lifestyle changes.
Many experts argue that, considering the significant potential of weight regain, the treatment might need to be ongoing.
This perspective is supported by drug manufacturers, who note that the results "highlight the long-term character of excess weight," akin to managing conditions like hypertension.
Patient Experiences
People who have stopped the jabs explain a powerful return of hunger.
"It was like a switch activating and I was suddenly starving," recalled one woman.
This difficulty is exacerbated if patients have not established permanent dietary or behavioural changes during therapy.
Significant Adoption
Recent estimates suggest that a significant number of adults in the UK have used weight-loss jabs in the past year, with desire continuing to grow.
- Adoption is greater among women than men.
- The middle-aged demographic shows the greatest usage rates.
- Many obtain the drugs through private healthcare rather than public health services.
Finally, clinicians emphasize that while these medications are effective tools for shedding pounds, they are not a magic cure and maintained weight loss hinges on ongoing lifestyle management.
