A recent study indicates that individuals who stop using blockbuster weight-loss injections like semaglutide or tirzepatide may regain reduced body mass much more quickly than those who stop traditional diet and exercise regimens.
Published data in a prominent health publication demonstrates that while obese people often shed a large proportion of their body weight while undergoing treatment, the mass comes back at an estimated rate of 0.8 kg per month upon discontinuation.
"People using such drugs must be aware of the potential of fast rebound weight gain when the treatment is stopped," cautioned researcher Dr. Susan Jebb.
That rate of recovery suggests a reversion to original mass in about one and a half years.
Comparing Approaches
The research, which examined 37 of studies involving thousands of participants, compared the outcomes of the injectable medications with other pills.
Scientists note that people who shed pounds through lifestyle changes alone typically see a more gradual weight regain—around 100 grams monthly—once they finish.
Understanding the Quick Regain
Experts propose the mechanism of the drugs explains the accelerated regain.
These medications imitate a body's own chemical called GLP-1, which helps regulate appetite.
"Long-term administration of the hormone levels several times higher than normal could lead to the body to produce less of its endogenous GLP-1, and could lessen sensitivity to its actions," explained Dr. Adam Collins, a dietetics expert.
"Withdrawal of this medication means hunger is unsuppressed, making overeating much more probable."
An Ongoing Disease?
Health authorities suggest the jabs for people with weight-linked medical conditions, accompanied by recommended diet and exercise modifications.
Professionals argue that, given the high risk of relapse, the therapy is often long-term.
This opinion is supported by drug manufacturers, who note that the findings "highlight the chronic nature of excess weight," comparing it to managing diseases like high blood pressure.
User Accounts
Individuals who have discontinued the medication report a powerful resurgence of appetite.
"I experienced a trigger that goes on and you become extremely hungry," said one woman.
This challenge is exacerbated if individuals have not adopted permanent lifestyle or habit changes during treatment.
Growing Use
Figures show that millions of adults in the UK have tried these injections in the past year, with interest remaining high.
- Use is greater among females than men.
- The 40s and 50s demographic shows the highest usage rates.
- A large proportion obtain the drugs through private prescriptions rather than the NHS.
Ultimately, experts caution that while these medications are effective tools for weight loss, they are not a standalone fix and maintained weight loss hinges on ongoing lifestyle management.
