Fresh analysis indicates that people who stop using popular weight-loss injections like semaglutide or tirzepatide can put back on reduced body mass at a significantly accelerated pace than those who end traditional lifestyle programs.
Findings released in a leading medical journal shows that while overweight individuals often shed a large proportion of their body weight while on the medication, the mass is regained at an average rate of nearly a kilo each month after stopping.
"People purchasing such treatments must be cognizant of the danger of quick weight regain when the medication is stopped," warns researcher Dr. Susan Jebb.
Such speed of recovery suggests a reversion to pre-treatment weight within about one and a half years.
Weighing Treatments
The research, which examined dozens of trials involving over 9,000 of patients, contrasted the outcomes of these new drugs with other pills.
Researchers emphasize that people who lose weight through diet and exercise generally have a more gradual creep back—perhaps 100 grams monthly—once they finish.
Explaining the Fast Rebound
Nutrition scientists believe the way of the drugs explains the amplified regain.
GLP-1 drugs mimic a natural hormone called glucagon-like peptide-1, which helps regulate appetite.
"Long-term administration of the hormone levels far above than normal may cause the system to produce less of its own natural hormone, and could reduce responsiveness to its actions," said Dr. Adam Collins, a nutrition researcher.
"Withdrawal of this medication means hunger is uncontrolled, making binge eating much more probable."
An Ongoing Issue?
Health authorities recommend the injections for people with weight-linked medical conditions, alongside recommended lifestyle changes.
Many experts say that, considering the high risk of weight regain, the treatment might need to be life-long.
This opinion is echoed by pharmaceutical companies, who note that the findings "underscore the long-term character of excess weight," akin to managing diseases like high blood pressure.
Patient Accounts
Users who have come off the medication report a sudden return of appetite.
"It felt as if a switch activating and you become ravenous," described a patient.
The struggle is compounded if individuals have not established permanent lifestyle or habit changes during therapy.
Significant Adoption
Recent estimates indicate that millions of adults in the UK have tried weight-loss jabs in the last 12 months, with desire being substantial.
- Use is more common among females compared to males.
- The 40s and 50s age group shows the greatest level of interest.
- Many access the drugs through private prescriptions rather than the NHS.
Finally, researchers stress that while the jabs are potent tools for weight loss, they are not a standalone solution and maintained weight loss hinges on combined lifestyle changes.