A recent study suggests that patients who stop using blockbuster slimming jabs like semaglutide or tirzepatide can put back on shed pounds at a significantly accelerated pace than those who end conventional diet and exercise programs.
Published data in a major medical journal points out that while overweight people can lose about a fifth of their body weight while on the medication, the mass is regained at an estimated rate of 0.8 kg per month after stopping.
"Users using such drugs should be informed of the potential of fast rebound weight gain when the therapy concludes," cautioned lead investigator Dr. Susan Jebb.
That rate of regain suggests a return to original weight within about a year and a half.
Analyzing Therapies
The study, which looked at dozens of studies involving over 9,000 of patients, contrasted the results of GLP-1 agonists with older methods.
Researchers point out that individuals who shed pounds through dieting typically experience a less rapid creep back—approximately 0.1 kg a month—after stopping.
The Reason for the Rapid Regain
Doctors believe the mechanism of the jabs explains the amplified rebound.
These medications mimic a body's own chemical called glucagon-like peptide-1, which helps regulate appetite.
"Sustained high doses of the hormone concentrations several times higher than normal could lead to the body to produce less of its endogenous hormone, and may also diminish sensitivity to its effects," noted Dr. Adam Collins, a nutrition researcher.
"Withdrawal of this hormone supplement leads to appetite is uncontrolled, making binge eating much more probable."
An Ongoing Disease?
Medical guidelines recommend the injections for individuals with obesity-related health risks, accompanied by prescribed diet and exercise modifications.
A number of clinicians contend that, given the likelihood of relapse, the therapy might need to be ongoing.
This view is reinforced by drug manufacturers, who say that the results "emphasize the long-term character of excess weight," similar to managing diseases like high blood pressure.
User Testimonies
Users who have discontinued the medication explain a powerful return of cravings.
"It was like a switch that goes on and you're instantly ravenous," said one woman.
This difficulty is worsened if patients have not developed lasting dietary or behavioural changes during therapy.
Growing Interest
Recent estimates indicate that millions of adults in the UK have used weight-loss jabs in the past year, with desire being substantial.
- Adoption is higher among females compared to men.
- The middle-aged demographic shows the greatest level of interest.
- Many obtain the medications through private healthcare rather than the NHS.
Finally, researchers stress that while the jabs are effective agents for shedding pounds, they are not a standalone solution and long-term success relies on ongoing behavioural management.
