Fresh analysis reveals that individuals who discontinue blockbuster GLP-1 drugs like semaglutide or tirzepatide may regain shed pounds much more quickly than those who end conventional diet and exercise regimens.
Findings released in a leading health publication points out that while obese individuals frequently drop about a fifth of their total mass while undergoing treatment, the mass returns at an average rate of 0.8 kg per month once they quit.
"People buying these treatments must be informed of the risk of rapid rebound weight gain when the medication ends," stated expert Dr. Susan Jebb.
That rate of regain means a reversion to starting weight in about 18 months.
Analyzing Therapies
The research, which examined dozens of trials involving over 9,000 of participants, compared the effects of these new drugs with older methods.
Researchers point out that individuals who shed pounds through diet and exercise generally see a less rapid creep back—around 100 grams monthly—once they finish.
Understanding the Quick Regain
Doctors propose the way of the jabs accounts for the accelerated rebound.
The injections imitate a body's own chemical called glucagon-like peptide-1, which moderates hunger.
"Artificially providing GLP-1 concentrations several times higher than normal might result in the system to produce less of its own natural hormone, and may also diminish sensitivity to its effects," noted Dr. Adam Collins, a nutrition specialist.
"Stopping of this GLP-1 'fix' means appetite is no longer kept in check, making excessive eating far more likely."
An Ongoing Disease?
The NHS recommend the jabs for individuals with obesity-related health risks, alongside recommended diet and exercise modifications.
A number of clinicians say that, given the significant potential of weight regain, the treatment should be considered life-long.
This view is supported by pharmaceutical companies, who say that the findings "highlight the persistent nature of obesity," akin to managing diseases like high blood pressure.
Patient Testimonies
Individuals who have come off the medication describe a intense return of cravings.
"It felt as if a trigger flipping and you're instantly starving," said a patient.
This difficulty is compounded if individuals have not developed permanent dietary or behavioural changes during therapy.
Significant Interest
Recent estimates show that millions of people in the UK have used these injections in the past year, with interest continuing to grow.
- Use is more common among females compared to men.
- The 40s and 50s age group shows the highest level of interest.
- A large proportion obtain the medications through private prescriptions rather than public health services.
Ultimately, clinicians emphasize that while the jabs are potent tools for weight loss, they are not a magic fix and lasting health benefits hinges on ongoing lifestyle support.
