New research reveals that patients who come off blockbuster slimming jabs like semaglutide or tirzepatide may regain shed pounds much more quickly than those who end traditional diet and exercise regimens.
Findings released in a prominent medical journal points out that while obese people often shed about a fifth of their total mass while on the medication, the mass returns at an average rate of nearly a kilo each month once they quit.
"People buying such drugs must be informed of the danger of fast rebound weight gain when the therapy ends," stated expert Dr. Susan Jebb.
This pace of regain implies a return to original weight in about 18 months.
Weighing Therapies
The research, which reviewed dozens of trials involving thousands of participants, contrasted the results of the injectable medications with older methods.
Researchers point out that people who shed pounds through lifestyle changes alone generally have a less rapid weight regain—approximately 0.1 kg a month—post-intervention.
Understanding the Quick Regain
Nutrition scientists propose the way of the injections is key to understanding the amplified regain.
The injections copy a natural hormone called glucagon-like peptide-1, which moderates appetite.
"Artificially providing GLP-1 concentrations several times higher than the body's typical production may cause the body to generate a reduced amount of its endogenous GLP-1, and may also lessen responsiveness to its effects," explained Dr. Adam Collins, a nutrition expert.
"Withdrawal of this medication results in hunger is unsuppressed, making binge eating far more likely."
A Lifelong Disease?
Health authorities recommend the injections for individuals with obesity-related medical conditions, alongside recommended diet and exercise modifications.
A number of clinicians contend that, due to the high risk of weight regain, the therapy is often life-long.
This perspective is reinforced by drug manufacturers, who say that the results "highlight the persistent nature of obesity," comparing it to managing diseases like diabetes.
Patient Accounts
Users who have come off the medication report a powerful return of cravings.
"It felt as if something that goes on and you become extremely hungry," recalled one woman.
This difficulty is worsened if patients have not adopted lasting dietary or behavioural changes during treatment.
Significant Interest
Figures suggest that millions of adults in the UK have used weight-loss jabs in the last 12 months, with demand being substantial.
- Adoption is higher among females compared to males.
- The 40s and 50s demographic shows the greatest usage rates.
- Many obtain the medications through private healthcare rather than the NHS.
Finally, experts stress that while these medications are powerful tools for shedding pounds, they are not a standalone solution and lasting health benefits hinges on ongoing lifestyle support.
