New research suggests that individuals who come off popular weight-loss injections like semaglutide or tirzepatide tend to recover reduced body mass far faster than those who end conventional diet and exercise programs.
Research printed in a prominent medical journal demonstrates that while obese individuals can lose a large proportion of their body weight while using the jabs, the mass is regained at an estimated rate of nearly a kilo each month upon discontinuation.
"Users using such medications need to be informed of the risk of rapid rebound weight gain when the treatment ends," warns researcher Dr. Susan Jebb.
That rate of regain implies a reversion to original weight within about 18 months.
Comparing Therapies
The research, which looked at 37 of trials involving thousands of patients, compared the outcomes of GLP-1 agonists with conventional dieting.
Researchers note that people who lose weight through lifestyle changes alone generally have a less rapid weight regain—approximately 100 grams monthly—post-intervention.
Understanding the Fast Rebound
Doctors propose the mode of action of the injections is key to understanding the heightened rebound.
These medications imitate a natural hormone called GLP-1, which moderates appetite.
"Artificially providing the hormone concentrations far above than the body's typical production might result in the body to produce less of its endogenous GLP-1, and could diminish responsiveness to its actions," explained Dr. Adam Collins, a dietetics expert.
"Withdrawal of this GLP-1 'fix' means hunger is no longer kept in check, making overeating a significant risk."
An Ongoing Condition?
Health authorities recommend the injections for people with weight-linked medical conditions, accompanied by recommended diet and exercise modifications.
Many experts contend that, given the significant potential of relapse, the therapy might need to be life-long.
This view is supported by pharmaceutical companies, who state that the findings "highlight the long-term nature of excess weight," similar to managing diseases like diabetes.
User Testimonies
People who have come off the jabs report a intense return of hunger.
"I experienced a switch flipping and you become starving," recalled one woman.
This challenge is compounded if users have not adopted sustainable lifestyle or habit changes during treatment.
Growing Adoption
Figures show that a significant number of adults in the UK have tried weight-loss jabs in the past year, with demand being substantial.
- Adoption is more common among females compared to men.
- The middle-aged demographic shows the highest level of interest.
- A large proportion obtain the drugs through private prescriptions rather than public health services.
Ultimately, clinicians caution that while the jabs are powerful tools for shedding pounds, they are not a permanent solution and lasting health benefits hinges on combined lifestyle changes.