A recent study reveals that people who discontinue blockbuster weight-loss injections like semaglutide or tirzepatide may regain reduced body mass far faster than those who stop conventional diet and exercise regimens.
Research printed in a major medical journal shows that while obese individuals can lose about a fifth of their total mass while on the medication, the weight comes back at an average rate of nearly a kilo each month upon discontinuation.
"Individuals using these medications should be aware of the risk of quick rebound weight gain when the therapy concludes," stated researcher Dr. Susan Jebb.
Such speed of recovery implies a reversion to starting mass in about one and a half years.
Weighing Approaches
The study, which reviewed 37 of studies involving thousands of participants, compared the effects of GLP-1 agonists with older methods.
The team emphasize that people who lose weight through lifestyle changes alone usually experience a slower weight regain—around 100 grams monthly—once they finish.
Understanding the Rapid Regain
Experts suggest the mechanism of the drugs is key to understanding the heightened regain.
The injections copy a natural hormone called GLP-1, which moderates hunger.
"Artificially providing GLP-1 levels far above than the body's typical production could lead to the system to produce less of its endogenous GLP-1, and could reduce responsiveness to its effects," noted Dr. Adam Collins, a nutrition researcher.
"Withdrawal of this GLP-1 'fix' leads to hunger is no longer kept in check, making overeating a significant risk."
A Chronic Disease?
Health authorities recommend the injections for individuals with weight-linked medical conditions, accompanied by recommended diet and exercise modifications.
Many experts say that, considering the high risk of weight regain, the therapy is often long-term.
This perspective is echoed by drug manufacturers, who state that the results "emphasize the long-term nature of obesity," comparing it to managing conditions like high blood pressure.
Patient Accounts
People who have stopped the jabs describe a intense resurgence of cravings.
"I experienced something that goes on and I was suddenly starving," recalled one woman.
The struggle is compounded if patients have not established lasting lifestyle or habit changes during treatment.
Significant Interest
Recent estimates show that a significant number of people in the UK have tried weight-loss jabs in the past year, with desire remaining high.
- Use is higher among women than men.
- The middle-aged age group shows the greatest level of interest.
- Many obtain the drugs through private prescriptions rather than public health services.
Ultimately, experts caution that while these medications are effective agents for shedding pounds, they are not a magic fix and long-term success likely depends on integrated behavioural changes.
