Fresh analysis indicates that individuals who stop using new slimming jabs like Wegovy and Mounjaro can put back on lost weight far faster than those who stop traditional diet and exercise regimens.
Published data in a leading medical journal shows that while overweight people can lose substantial amounts of their body weight while using the jabs, the mass returns at an average rate of nearly a kilo each month once they quit.
"Individuals purchasing such medications must be aware of the risk of fast rebound weight gain when the medication is stopped," stated expert Dr. Susan Jebb.
Such speed of regain means a return to original mass within about one and a half years.
Comparing Therapies
The research, which reviewed 37 of studies involving thousands of patients, compared the results of the injectable medications with other pills.
Scientists note that people who shed pounds through lifestyle changes alone usually have a more gradual weight regain—around 100 grams monthly—post-intervention.
The Reason for the Rapid Regain
Experts believe the mechanism of the jabs explains the amplified rebound.
These medications copy a natural hormone called glucagon-like peptide-1, which moderates hunger.
"Long-term administration of GLP-1 concentrations far above than normal might result in the body to produce less of its own natural GLP-1, and may also diminish sensitivity to its actions," explained Dr. Adam Collins, a nutrition expert.
"Discontinuation of this hormone supplement leads to appetite is uncontrolled, making overeating far more likely."
A Chronic Disease?
Medical guidelines recommend the injections for people with obesity-related medical conditions, alongside recommended diet and exercise modifications.
Many experts argue that, considering the significant potential of weight regain, the therapy should be considered ongoing.
This perspective is supported by pharmaceutical companies, who say that the results "emphasize the persistent nature of obesity," comparing it to managing diseases like hypertension.
User Testimonies
Individuals who have discontinued the jabs explain a powerful resurgence of appetite.
"It was like something flipping and you're instantly extremely hungry," recalled one woman.
The struggle is compounded if patients have not developed permanent dietary or behavioural changes during therapy.
Growing Adoption
Survey data show that millions of people in the UK have tried weight-loss jabs in the last 12 months, with desire continuing to grow.
- Use is higher among women compared to males.
- The middle-aged demographic shows the highest level of interest.
- Many access the drugs through private healthcare rather than public health services.
Ultimately, researchers emphasize that while the jabs are powerful tools for weight loss, they are not a magic solution and long-term success hinges on combined behavioural support.
