A recent study indicates that patients who discontinue popular weight-loss injections like semaglutide or tirzepatide may regain shed pounds far faster than those who stop traditional diet and exercise regimens.
Research printed in a major health publication demonstrates that while obese individuals can lose about a fifth of their body weight while using the jabs, the mass is regained at an estimated rate of nearly a kilo each month upon discontinuation.
"People purchasing these medications must be aware of the potential of fast rebound weight gain when the medication concludes," warns researcher Dr. Susan Jebb.
Such speed of regain means a reversion to original mass within about 18 months.
Comparing Approaches
The analysis, which looked at dozens of trials involving thousands of participants, contrasted the outcomes of the injectable medications with other pills.
Scientists note that people who shed pounds through diet and exercise usually experience a more gradual weight regain—around 0.1 kg a month—after stopping.
Explaining the Quick Rebound
Experts believe the mode of action of the drugs is key to understanding the accelerated regain.
The injections mimic a natural hormone called GLP-1, which helps regulate hunger.
"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 reduce sensitivity to its actions," said Dr. Adam Collins, a dietetics specialist.
"Withdrawal of this GLP-1 'fix' means hunger is no longer kept in check, making overeating a significant risk."
An Ongoing Disease?
Health authorities advise the injections for people with obesity-related medical conditions, alongside prescribed lifestyle changes.
Many experts argue that, given the high risk of relapse, the therapy is often ongoing.
This view is reinforced by drug manufacturers, who note that the results "emphasize the persistent nature of obesity," comparing it to managing diseases like diabetes.
Patient Accounts
Individuals who have discontinued the medication describe a intense return of cravings.
"I experienced something that goes on and you're instantly starving," recalled an individual.
The struggle is compounded if individuals have not adopted permanent lifestyle or habit modifications during treatment.
Significant Interest
Recent estimates indicate that millions of adults in the UK have tried these injections in the past year, with desire remaining high.
- Adoption is higher among females than males.
- The 40s and 50s demographic shows the highest usage rates.
- A large proportion access the drugs through private healthcare rather than public health services.
Ultimately, clinicians caution that while these medications are effective tools for weight loss, they are not a magic solution and maintained weight loss relies on ongoing behavioural changes.
