Fresh analysis indicates that patients who come off popular weight-loss injections like semaglutide or tirzepatide may regain shed pounds far faster than those who halt traditional lifestyle programs.
Published data in a prominent medical journal demonstrates that while obese individuals often shed a large proportion of their body weight while on the medication, the mass comes back at an estimated rate of 0.8 kg per month upon discontinuation.
"Individuals using these treatments need to be cognizant of the potential of rapid rebound weight gain when the therapy concludes," warns lead investigator Dr. Susan Jebb.
That rate of recovery means a reversion to original weight within about 18 months.
Weighing Treatments
The research, which reviewed dozens of studies involving over 9,000 of patients, compared the results of GLP-1 agonists with other pills.
Researchers emphasize that individuals who shed pounds through lifestyle changes alone typically see a slower weight regain—around 0.1 kg a month—after stopping.
Understanding the Quick Regain
Experts suggest the mode of action of the jabs explains the heightened weight return.
The injections copy a body's own chemical called glucagon-like peptide-1, which helps regulate feelings of fullness.
"Artificially providing GLP-1 levels far above than the body's typical production may cause the body to generate a reduced amount of its endogenous hormone, and may also diminish sensitivity to its effects," said Dr. Adam Collins, a dietetics researcher.
"Stopping of this medication results in appetite is no longer kept in check, making excessive eating a significant risk."
A Chronic Issue?
Health authorities recommend the jabs for people with weight-linked medical conditions, alongside recommended diet and exercise modifications.
Professionals argue that, given the significant potential of weight regain, the therapy might need to be ongoing.
This view is reinforced by pharmaceutical companies, who state that the findings "emphasize the long-term character of obesity," akin to managing diseases like high blood pressure.
Patient Experiences
People who have come off the jabs explain a powerful return of cravings.
"It felt as if something activating and I was suddenly starving," recalled an individual.
The struggle is worsened if users have not developed sustainable lifestyle or habit changes during therapy.
Significant Use
Survey data suggest that a significant number of people in the UK have used weight-loss jabs in the past year, with demand continuing to grow.
- Use is greater among women compared to men.
- The 40s and 50s demographic shows the highest usage rates.
- A large proportion obtain the drugs through private healthcare rather than public health services.
In conclusion, researchers caution that while GLP-1 drugs are powerful agents for shedding pounds, they are not a permanent cure and long-term success hinges on integrated behavioural management.
