A recent study reveals that people who discontinue popular weight-loss injections like semaglutide or tirzepatide can put back on reduced body mass far faster than those who halt traditional lifestyle plans.
Published data in a leading medical journal demonstrates that while overweight people frequently drop about a fifth of their body weight while undergoing treatment, the mass is regained at an estimated rate of nearly a kilo each month upon discontinuation.
"Individuals buying such medications need to be aware of the risk of rapid weight regain when the medication ends," cautioned researcher Dr. Susan Jebb.
This pace of regain implies a reversion to starting mass within about 18 months.
Weighing Therapies
The research, which looked at 37 of trials involving thousands of patients, compared the effects of these new drugs with other pills.
Researchers note that individuals who shed pounds through lifestyle changes alone typically experience a slower weight regain—perhaps 0.1 kg a month—post-intervention.
Explaining the Rapid Rebound
Nutrition scientists suggest the mode of action of the injections explains the accelerated regain.
These medications imitate a natural hormone called glucagon-like peptide-1, which moderates hunger.
"Artificially providing the hormone levels far above than normal could lead to the system to generate a reduced amount of its endogenous GLP-1, and could lessen responsiveness to its actions," said Dr. Adam Collins, a nutrition researcher.
"Withdrawal of this hormone supplement results in appetite is no longer kept in check, making binge eating far more likely."
An Ongoing Issue?
Health authorities advise the jabs for people with weight-linked medical conditions, accompanied by recommended lifestyle changes.
A number of clinicians argue that, given the likelihood of weight regain, the therapy is often long-term.
This view is supported by drug manufacturers, who say that the results "emphasize the chronic character of excess weight," comparing it to managing conditions like diabetes.
Patient Accounts
Users who have discontinued the jabs explain a powerful resurgence of cravings.
"It was like something flipping and I was suddenly ravenous," said one woman.
This challenge is exacerbated if users have not established sustainable lifestyle or habit changes during therapy.
Growing Use
Recent estimates suggest that a significant number of people in the UK have used these injections in the last 12 months, with desire remaining high.
- Use is greater among females compared to males.
- The 40s and 50s age group shows the highest level of interest.
- A large proportion access the medications through private healthcare rather than the NHS.
Ultimately, clinicians caution that while the jabs are powerful agents for shedding pounds, they are not a magic cure and maintained weight loss likely depends on integrated lifestyle management.
