New research indicates that patients who stop using blockbuster weight-loss injections like Mounjaro or Wegovy tend to recover shed pounds much more quickly than those who halt conventional lifestyle regimens.
Findings released in a prominent health publication shows that while obese individuals can lose substantial amounts of their body weight while using the jabs, the mass comes back at an average rate of 0.8 kg per month upon discontinuation.
"Users buying such medications must be informed of the risk of quick weight regain when the therapy concludes," warns researcher Dr. Susan Jebb.
This pace of regain implies a reversion to starting mass in about a year and a half.
Weighing Therapies
The analysis, which looked at dozens of trials involving thousands of participants, contrasted the results of GLP-1 agonists with older methods.
Researchers note that individuals who lose weight through dieting typically experience a slower weight regain—around 0.1 kg a month—once they finish.
The Reason for the Quick Regain
Nutrition scientists believe the mechanism of the injections is key to understanding the amplified weight return.
The injections copy a natural hormone called glucagon-like peptide-1, which moderates appetite.
"Artificially providing GLP-1 concentrations far above than normal may cause the system to produce less of its endogenous hormone, and could lessen sensitivity to its effects," noted Dr. Adam Collins, a dietetics expert.
"Discontinuation of this hormone supplement results in hunger is uncontrolled, making overeating far more likely."
A Lifelong Issue?
The NHS suggest the injections for people with weight-linked medical conditions, accompanied by prescribed diet and exercise modifications.
Many experts argue that, due to the likelihood of weight regain, the therapy is often life-long.
This view is supported by drug manufacturers, who state that the findings "underscore the persistent character of obesity," comparing it to managing diseases like hypertension.
Patient Accounts
Users who have discontinued the medication describe a intense return of cravings.
"It felt as if a switch activating and I was suddenly starving," recalled one woman.
The struggle is compounded if individuals have not established permanent lifestyle or habit changes during treatment.
Widespread Interest
Figures suggest that millions of people in the UK have used these injections in the past year, with desire continuing to grow.
- Use is greater among women compared to males.
- The middle-aged demographic shows the greatest level of interest.
- A large proportion access the drugs through private healthcare rather than public health services.
Ultimately, clinicians emphasize that while these medications are potent tools for weight loss, they are not a permanent solution and maintained weight loss likely depends on combined behavioural changes.
