Fresh analysis reveals that individuals who stop using blockbuster weight-loss injections like Mounjaro or Wegovy can put back on reduced body mass at a significantly accelerated pace than those who stop conventional lifestyle regimens.
Published data in a leading medical journal points out that while obese individuals can lose substantial amounts of their body weight while undergoing treatment, the weight comes back at an estimated rate of nearly a kilo each month once they quit.
"People purchasing such treatments must be aware of the risk of rapid weight regain when the medication is stopped," stated researcher Dr. Susan Jebb.
Such speed of recovery implies a reversion to pre-treatment mass within about 18 months.
Comparing Approaches
The research, which looked at dozens of studies involving thousands of participants, contrasted the outcomes of the injectable medications with conventional dieting.
Researchers emphasize that people who lose weight through diet and exercise usually see a slower creep back—approximately 100 grams monthly—post-intervention.
The Reason for the Fast Regain
Doctors propose the mode of action of the jabs explains the accelerated weight return.
These medications copy a natural hormone called GLP-1, which controls hunger.
"Long-term administration of GLP-1 concentrations several times higher than normal may cause the body to generate a reduced amount of its endogenous hormone, and could diminish responsiveness to its actions," noted Dr. Adam Collins, a dietetics specialist.
"Discontinuation of this GLP-1 'fix' means appetite is unsuppressed, making excessive eating far more likely."
A Chronic Issue?
Health authorities recommend the jabs for individuals with weight-linked medical conditions, accompanied by prescribed lifestyle changes.
Many experts say that, given the significant potential of weight regain, the treatment should be considered life-long.
This opinion is supported by pharmaceutical companies, who state that the findings "emphasize the chronic nature of obesity," similar to managing diseases like high blood pressure.
Patient Experiences
Users who have come off the jabs report a powerful return of hunger.
"It felt as if something that goes on and you're instantly ravenous," said a patient.
This challenge is exacerbated if patients have not developed lasting dietary or behavioural changes during therapy.
Growing Use
Recent estimates indicate that millions of adults in the UK have used weight-loss jabs in the past year, with demand continuing to grow.
- Adoption is higher among women than males.
- The middle-aged demographic shows the highest usage rates.
- A large proportion access the drugs through private prescriptions rather than public health services.
In conclusion, clinicians caution that while these medications are effective tools for weight loss, they are not a magic fix and long-term success relies on integrated behavioural support.
