Fresh analysis indicates that individuals who discontinue blockbuster GLP-1 drugs like Mounjaro or Wegovy can put back on lost weight at a significantly accelerated pace than those who halt traditional diet and exercise programs.
Published data in a prominent medical journal points out that while overweight people frequently drop substantial amounts of their total mass while using the jabs, the weight comes back at an estimated rate of 0.8 kg per month once they quit.
"People using these drugs must be cognizant of the danger of fast weight regain when the therapy ends," warns expert Dr. Susan Jebb.
This pace of recovery suggests a reversion to pre-treatment weight within about a year and a half.
Weighing Approaches
The study, which examined 37 of trials involving over 9,000 of participants, compared the outcomes of these new drugs with conventional dieting.
Researchers note that individuals who lose weight through lifestyle changes alone typically have a less rapid weight regain—perhaps 100 grams monthly—after stopping.
The Reason for the Fast Regain
Nutrition scientists suggest the mechanism of the jabs explains the amplified regain.
GLP-1 drugs mimic a natural hormone called GLP-1, which moderates appetite.
"Sustained high doses of the hormone levels several times higher than normal could lead to the body to generate a reduced amount of its endogenous GLP-1, and may also lessen responsiveness to its actions," explained Dr. Adam Collins, a dietetics expert.
"Discontinuation of this medication results in appetite is unsuppressed, making overeating a significant risk."
A Chronic Disease?
Medical guidelines advise the injections for individuals with weight-linked health risks, accompanied by recommended lifestyle changes.
Many experts argue that, considering the significant potential of relapse, the therapy should be considered life-long.
This view is reinforced by pharmaceutical companies, who say that the findings "underscore the persistent character of obesity," similar to managing diseases like diabetes.
User Accounts
People who have come off the medication explain a sudden resurgence of appetite.
"It was like something flipping and you become extremely hungry," recalled one woman.
The struggle is worsened if users have not developed permanent dietary or behavioural changes during therapy.
Significant Adoption
Recent estimates suggest that a significant number of people in the UK have tried weight-loss jabs in the last 12 months, with demand remaining high.
- Use is greater among females compared to males.
- The 40s and 50s demographic shows the greatest usage rates.
- A large proportion obtain the medications through private prescriptions rather than the NHS.
Finally, experts emphasize that while GLP-1 drugs are effective tools for weight loss, they are not a standalone cure and long-term success hinges on combined behavioural management.
