Fresh analysis suggests that people who discontinue new slimming jabs like Mounjaro or Wegovy may regain shed pounds at a significantly accelerated pace than those who end traditional lifestyle regimens.
Published data in a leading medical journal demonstrates that while obese people frequently drop substantial amounts of their total mass while on the medication, the mass comes back at an estimated rate of 0.8 kg per month after stopping.
"People buying these treatments need to be informed of the risk of fast rebound weight gain when the treatment concludes," cautioned researcher Dr. Susan Jebb.
This pace of regain implies a reversion to pre-treatment mass within about one and a half years.
Analyzing Approaches
The study, which reviewed 37 of studies involving over 9,000 of patients, contrasted the effects of the injectable medications with conventional dieting.
The team note that individuals who shed pounds through dieting typically see a less rapid creep back—perhaps 0.1 kg a month—after stopping.
Understanding the Quick Regain
Doctors believe the mode of action of the jabs is key to understanding the heightened weight return.
GLP-1 drugs mimic a natural hormone called GLP-1, which controls feelings of fullness.
"Sustained high doses of the hormone levels several times higher than the body's typical production might result in the system to generate a reduced amount of its endogenous GLP-1, and may also lessen responsiveness to its effects," explained Dr. Adam Collins, a dietetics researcher.
"Stopping of this GLP-1 'fix' means appetite is uncontrolled, making overeating much more probable."
A Chronic Condition?
Medical guidelines suggest the jabs for people with obesity-related medical conditions, alongside prescribed diet and exercise modifications.
A number of clinicians argue that, due to the likelihood of relapse, the therapy should be considered life-long.
This opinion is reinforced by pharmaceutical companies, who say that the results "underscore the persistent character of excess weight," akin to managing conditions like diabetes.
Patient Testimonies
People who have stopped the medication report a powerful resurgence of hunger.
"It was like something activating and you become extremely hungry," said one woman.
This challenge is exacerbated if patients have not established sustainable lifestyle or habit modifications during treatment.
Growing Adoption
Recent estimates indicate that a significant number of people in the UK have used weight-loss jabs in the past year, with demand continuing to grow.
- Adoption is more common among women compared to men.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion obtain the medications through private healthcare rather than the NHS.
Ultimately, researchers stress that while the jabs are powerful agents for weight loss, they are not a magic cure and long-term success relies on integrated lifestyle management.
