New research indicates that people who come off blockbuster GLP-1 drugs like Mounjaro or Wegovy can put back on lost weight far faster than those who end traditional lifestyle plans.
Published data in a leading medical journal demonstrates that while obese individuals often shed a large proportion of their body weight while undergoing treatment, the weight is regained at an estimated rate of nearly a kilo each month after stopping.
"Users buying such drugs should be aware of the potential of rapid weight regain when the treatment concludes," warns lead investigator Dr. Susan Jebb.
Such speed of regain means a reversion to starting mass in about a year and a half.
Weighing Approaches
The research, which examined dozens of trials involving over 9,000 of participants, contrasted the results of the injectable medications with older methods.
The team emphasize that individuals who shed pounds through dieting generally see a more gradual creep back—around 100 grams monthly—after stopping.
Explaining the Fast Rebound
Nutrition scientists suggest the mode of action of the drugs is key to understanding the accelerated weight return.
The injections copy a natural hormone called GLP-1, which controls appetite.
"Artificially providing GLP-1 levels far above than the body's typical production may cause the system to generate a reduced amount of its own natural hormone, and could diminish sensitivity to its actions," said Dr. Adam Collins, a nutrition specialist.
"Stopping of this medication means hunger is no longer kept in check, making binge eating a significant risk."
A Lifelong Issue?
Medical guidelines advise the injections for individuals with obesity-related health risks, accompanied by recommended lifestyle changes.
Professionals say that, due to the likelihood of weight regain, the treatment is often long-term.
This perspective is reinforced by pharmaceutical companies, who note that the findings "emphasize the persistent character of excess weight," akin to managing conditions like hypertension.
Patient Accounts
Individuals who have come off the medication report a sudden return of hunger.
"It felt as if a switch flipping and you're instantly starving," described one woman.
The struggle is exacerbated if patients have not developed lasting lifestyle or habit modifications during therapy.
Significant Interest
Figures show that a significant number of people in the UK have used weight-loss jabs in the last 12 months, with desire remaining high.
- Use is more common among women compared to males.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion obtain the medications through private prescriptions rather than the NHS.
In conclusion, experts caution that while these medications are effective agents for weight loss, they are not a standalone cure and maintained weight loss relies on integrated lifestyle changes.
