A recent study indicates that patients who discontinue new weight-loss injections like semaglutide or tirzepatide can put back on lost weight much more quickly than those who end traditional diet and exercise plans.
Published data in a leading medical journal shows that while overweight people often shed substantial amounts of their body weight while on the medication, the weight is regained at an estimated rate of nearly a kilo each month upon discontinuation.
"Users buying these drugs need to be cognizant of the potential of rapid weight regain when the therapy concludes," cautioned researcher Dr. Susan Jebb.
That rate of regain implies a return to original mass within about one and a half years.
Comparing Approaches
The study, which reviewed 37 of trials involving over 9,000 of patients, compared the outcomes of GLP-1 agonists with conventional dieting.
Researchers point out that people who shed pounds through lifestyle changes alone typically have a less rapid weight regain—around 0.1 kg a month—after stopping.
Explaining the Quick Regain
Doctors believe the mechanism of the injections is key to understanding the amplified regain.
The injections copy a natural hormone called glucagon-like peptide-1, which moderates hunger.
"Sustained high doses of the hormone concentrations far above than normal could lead to the system to generate a reduced amount of its own natural GLP-1, and may also reduce responsiveness to its effects," noted Dr. Adam Collins, a dietetics expert.
"Stopping of this hormone supplement results in appetite is uncontrolled, making excessive eating a significant risk."
A Lifelong Condition?
The NHS suggest the injections for individuals with weight-linked medical conditions, accompanied by recommended diet and exercise modifications.
Professionals contend that, due to the significant potential of relapse, the therapy should be considered ongoing.
This opinion is echoed by pharmaceutical companies, who note that the results "highlight the chronic character of excess weight," akin to managing conditions like high blood pressure.
User Testimonies
People who have discontinued the medication describe a intense resurgence of appetite.
"I experienced something activating and you become starving," described one woman.
This difficulty is compounded if individuals have not adopted permanent dietary or behavioural changes during therapy.
Growing Interest
Recent estimates suggest that millions of adults in the UK have tried these injections in the past year, with interest remaining high.
- Use is higher among females compared to men.
- The middle-aged age group shows the greatest usage rates.
- A large proportion access the medications through private prescriptions rather than the NHS.
Finally, clinicians emphasize that while these medications are powerful agents for weight loss, they are not a magic fix and maintained weight loss likely depends on integrated lifestyle changes.
