New research indicates that people who stop using popular weight-loss injections like semaglutide or tirzepatide tend to recover lost weight far faster than those who stop conventional lifestyle programs.
Findings released in a leading medical journal points out that while overweight people frequently drop substantial amounts of their body weight while using the jabs, the weight is regained at an average rate of 0.8 kg per month upon discontinuation.
"Users buying these medications should be informed of the danger of rapid rebound weight gain when the therapy is stopped," warns lead investigator Dr. Susan Jebb.
That rate of recovery means a return to original weight in about one and a half years.
Analyzing Approaches
The research, which looked at dozens of trials involving thousands of participants, contrasted the outcomes of these new drugs with other pills.
The team emphasize that individuals who lose weight through lifestyle changes alone typically see a more gradual creep back—around 0.1 kg a month—post-intervention.
Explaining the Rapid Rebound
Experts believe the mechanism of the drugs is key to understanding the amplified rebound.
GLP-1 drugs imitate a natural hormone called GLP-1, which controls feelings of fullness.
"Sustained high doses of the hormone concentrations far above than normal might result in the body to produce less of its own natural hormone, and may also diminish responsiveness to its effects," said Dr. Adam Collins, a nutrition specialist.
"Withdrawal of this GLP-1 'fix' leads to hunger is no longer kept in check, making overeating far more likely."
A Chronic Disease?
The NHS suggest the injections for people with obesity-related medical conditions, alongside prescribed lifestyle changes.
A number of clinicians say that, given the high risk of weight regain, the therapy might need to be ongoing.
This opinion is supported by drug manufacturers, who note that the findings "underscore the chronic character of obesity," comparing it to managing diseases like high blood pressure.
User Experiences
Individuals who have stopped the jabs report a sudden resurgence of cravings.
"I experienced a trigger that goes on and you're instantly starving," recalled a patient.
This difficulty is worsened if individuals have not established permanent lifestyle or habit changes during therapy.
Growing Interest
Figures indicate that a significant number of people in the UK have tried these injections in the past year, with demand continuing to grow.
- Use is greater among women than men.
- The middle-aged age group shows the greatest usage rates.
- Many obtain the drugs through private prescriptions rather than the NHS.
Ultimately, experts emphasize that while the jabs are effective tools for shedding pounds, they are not a permanent fix and long-term success hinges on ongoing lifestyle support.
