Fresh analysis reveals that people who stop using blockbuster weight-loss injections like semaglutide or tirzepatide can put back on shed pounds at a significantly accelerated pace than those who halt conventional diet and exercise regimens.
Research printed in a prominent health publication shows that while overweight individuals often shed about a fifth of their body weight while using the jabs, the mass comes back at an estimated rate of 0.8 kg per month upon discontinuation.
"Individuals purchasing such treatments need to be cognizant of the potential of rapid rebound weight gain when the medication ends," cautioned lead investigator Dr. Susan Jebb.
That rate of regain suggests a return to starting weight in about a year and a half.
Weighing Approaches
The analysis, which looked at 37 of trials involving over 9,000 of patients, contrasted the effects of the injectable medications with conventional dieting.
The team point out that people who lose weight through dieting usually see a more gradual weight regain—perhaps 100 grams monthly—post-intervention.
Understanding the Quick Regain
Experts propose the way of the drugs accounts for the accelerated weight return.
These medications copy a body's own chemical called GLP-1, which controls appetite.
"Long-term administration of GLP-1 concentrations far above than normal may cause the system 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 GLP-1 'fix' means appetite is uncontrolled, making excessive eating much more probable."
A Chronic Disease?
Health authorities recommend the injections for people with obesity-related health risks, alongside recommended diet and exercise modifications.
Many experts argue that, due to the high risk of relapse, the therapy is often long-term.
This perspective is echoed by drug manufacturers, who say that the findings "emphasize the persistent nature of excess weight," comparing it to managing conditions like high blood pressure.
User Experiences
People who have discontinued the jabs explain a powerful resurgence of hunger.
"It felt as if a trigger that goes on and I was suddenly starving," recalled an individual.
This difficulty is compounded if patients have not adopted lasting lifestyle or habit modifications during treatment.
Growing Interest
Figures indicate that millions of adults in the UK have tried these injections in the past year, with demand continuing to grow.
- Adoption is greater among females than males.
- The 40s and 50s age group shows the greatest level of interest.
- A large proportion obtain the drugs through private prescriptions rather than public health services.
Finally, experts emphasize that while these medications are potent tools for shedding pounds, they are not a standalone cure and maintained weight loss likely depends on combined behavioural support.
