A recent study indicates that patients who stop using blockbuster GLP-1 drugs like semaglutide or tirzepatide can put back on reduced body mass much more quickly than those who end traditional diet and exercise plans.
Research printed in a leading health publication points out that while overweight people often shed a large proportion of their total mass while on the medication, the mass is regained at an estimated rate of nearly a kilo each month once they quit.
"Individuals using such drugs must be cognizant of the potential of rapid weight regain when the treatment is stopped," stated lead investigator Dr. Susan Jebb.
That rate of recovery suggests a return to starting mass in about a year and a half.
Weighing Approaches
The research, which reviewed dozens of studies involving over 9,000 of participants, compared the outcomes of the injectable medications with older methods.
Scientists point out that individuals who lose weight through dieting typically see a less rapid creep back—perhaps 0.1 kg a month—once they finish.
Understanding the Quick Regain
Doctors propose the mechanism of the jabs accounts for the amplified rebound.
The injections mimic a natural hormone called glucagon-like peptide-1, which helps regulate hunger.
"Long-term administration of the hormone levels several times higher than normal could lead to the system to produce less of its own natural GLP-1, and could reduce sensitivity to its effects," noted Dr. Adam Collins, a dietetics specialist.
"Withdrawal of this hormone supplement results in appetite is uncontrolled, making binge eating a significant risk."
A Chronic Condition?
The NHS suggest the injections for individuals with weight-linked medical conditions, accompanied by recommended lifestyle changes.
Many experts contend that, given the significant potential of relapse, the treatment is often long-term.
This opinion is supported by pharmaceutical companies, who state that the results "emphasize the long-term nature of excess weight," similar to managing conditions like high blood pressure.
User Experiences
People who have come off the jabs report a intense return of cravings.
"It was like a switch flipping and you're instantly extremely hungry," recalled a patient.
The struggle is exacerbated if individuals have not developed permanent lifestyle or habit modifications during therapy.
Growing Adoption
Recent estimates show that millions of adults in the UK have tried these injections in the past year, with demand continuing to grow.
- Adoption is more common among women compared to males.
- The 40s and 50s demographic shows the highest level of interest.
- Many obtain the medications through private healthcare rather than the NHS.
Finally, researchers caution that while GLP-1 drugs are potent agents for shedding pounds, they are not a standalone cure and long-term success relies on integrated behavioural management.
