New research indicates that patients who discontinue blockbuster GLP-1 drugs like Mounjaro or Wegovy may regain shed pounds far faster than those who stop traditional lifestyle regimens.
Findings released in a major health publication points out that while overweight people frequently drop substantial amounts of their body weight while undergoing treatment, the weight is regained at an estimated rate of 0.8 kg per month upon discontinuation.
"People buying such medications need to be cognizant of the potential of fast weight regain when the medication is stopped," stated expert Dr. Susan Jebb.
Such speed of recovery means a reversion to pre-treatment mass in about one and a half years.
Weighing Therapies
The analysis, which looked at dozens of studies involving thousands of participants, compared the effects of the injectable medications with older methods.
The team point out that people who shed pounds through lifestyle changes alone generally see a more gradual weight regain—around 100 grams monthly—after stopping.
The Reason for the Quick Rebound
Nutrition scientists suggest the way of the injections explains the heightened weight return.
GLP-1 drugs mimic a natural hormone called glucagon-like peptide-1, which controls hunger.
"Artificially providing GLP-1 levels far above than normal may cause the body to produce less of its own natural hormone, and may also reduce sensitivity to its actions," explained Dr. Adam Collins, a nutrition expert.
"Withdrawal of this GLP-1 'fix' means hunger is no longer kept in check, making excessive eating far more likely."
A Lifelong Issue?
Medical guidelines advise the injections for individuals with weight-linked health risks, accompanied by recommended diet and exercise modifications.
Professionals argue that, considering the significant potential of weight regain, the therapy is often ongoing.
This view is echoed by pharmaceutical companies, who note that the findings "highlight the long-term character of excess weight," comparing it to managing diseases like diabetes.
Patient Testimonies
People who have discontinued the jabs explain a powerful return of hunger.
"It was like a trigger that goes on and you're instantly extremely hungry," said one woman.
This challenge is compounded if individuals have not developed lasting lifestyle or habit changes during therapy.
Widespread Use
Survey data show that millions of adults in the UK have tried weight-loss jabs in the past year, with demand continuing to grow.
- Use is higher among women compared to men.
- The 40s and 50s age group shows the highest usage rates.
- Many access the medications through private healthcare rather than the NHS.
Ultimately, experts emphasize that while the jabs are effective tools for weight loss, they are not a magic solution and long-term success hinges on combined behavioural changes.
