Fresh analysis reveals that patients who discontinue blockbuster weight-loss injections like Wegovy and Mounjaro may regain lost weight far faster than those who end conventional lifestyle regimens.
Research printed in a leading health publication points out that while obese individuals frequently drop substantial amounts of their total mass while using the jabs, the weight is regained at an average rate of 0.8 kg per month upon discontinuation.
"People buying such medications must be cognizant of the danger of rapid rebound weight gain when the therapy ends," stated lead investigator Dr. Susan Jebb.
That rate of regain suggests a return to pre-treatment weight within about a year and a half.
Comparing Approaches
The study, which examined 37 of studies involving over 9,000 of participants, contrasted the effects of these new drugs with other pills.
Scientists emphasize that individuals who lose weight through dieting typically experience a less rapid weight regain—around 0.1 kg a month—after stopping.
Understanding the Rapid Regain
Doctors believe the way of the injections is key to understanding the accelerated weight return.
GLP-1 drugs mimic a body's own chemical called glucagon-like peptide-1, which moderates appetite.
"Long-term administration of GLP-1 concentrations far above than normal may cause the body to generate a reduced amount of its own natural GLP-1, and could diminish sensitivity to its effects," explained Dr. Adam Collins, a nutrition expert.
"Stopping of this medication results in appetite is uncontrolled, making binge eating far more likely."
A Chronic Issue?
Health authorities advise the injections for individuals with weight-linked health risks, alongside recommended diet and exercise modifications.
Professionals argue that, considering the significant potential of weight regain, the treatment is often life-long.
This view is supported by pharmaceutical companies, who say that the results "underscore the persistent nature of excess weight," comparing it to managing diseases like diabetes.
User Accounts
People who have come off the medication explain a powerful resurgence of appetite.
"I experienced something flipping and you become starving," described an individual.
This difficulty is worsened if patients have not established sustainable dietary or behavioural changes during treatment.
Widespread Use
Figures suggest that a significant number of adults in the UK have tried weight-loss jabs in the last 12 months, with desire remaining high.
- Use is higher among women compared to males.
- The 40s and 50s demographic shows the greatest usage rates.
- Many access the medications through private prescriptions rather than the NHS.
Ultimately, clinicians stress that while GLP-1 drugs are effective tools for weight loss, they are not a permanent fix and long-term success likely depends on integrated lifestyle management.
