Fresh analysis suggests that patients who stop using new slimming jabs like Mounjaro or Wegovy may regain lost weight at a significantly accelerated pace than those who end traditional diet and exercise regimens.
Research printed in a leading medical journal points out that while overweight people often shed substantial amounts of their body weight while on the medication, the weight returns at an average rate of 0.8 kg per month once they quit.
"Individuals purchasing such medications need to be informed of the potential of fast weight regain when the therapy is stopped," cautioned researcher Dr. Susan Jebb.
This pace of recovery implies a reversion to starting mass within about one and a half years.
Comparing Approaches
The analysis, which looked at 37 of trials involving thousands of participants, compared the effects of GLP-1 agonists with other pills.
Scientists note that people who lose weight through dieting usually experience a slower weight regain—around 0.1 kg a month—after stopping.
Understanding the Rapid Rebound
Doctors believe the mode of action of the injections explains the heightened regain.
These medications mimic a natural hormone called GLP-1, which controls appetite.
"Long-term administration of GLP-1 concentrations far above than the body's typical production might result in the system to produce less of its endogenous hormone, and could lessen sensitivity to its effects," explained Dr. Adam Collins, a nutrition researcher.
"Stopping of this medication means appetite is no longer kept in check, making overeating far more likely."
A Lifelong Issue?
Medical guidelines advise the injections for individuals with weight-linked medical conditions, alongside prescribed lifestyle changes.
Many experts contend that, given the high risk of weight regain, the therapy is often life-long.
This opinion is echoed by pharmaceutical companies, who state that the findings "underscore the long-term nature of excess weight," similar to managing diseases like diabetes.
User Accounts
Users who have come off the jabs describe a sudden resurgence of hunger.
"It felt as if a trigger that goes on and I was suddenly starving," recalled an individual.
The struggle is worsened if individuals have not developed lasting dietary or behavioural modifications during treatment.
Widespread Interest
Figures indicate that a significant number of adults in the UK have tried weight-loss jabs in the last 12 months, with desire remaining high.
- Adoption is higher among women than males.
- The 40s and 50s demographic shows the greatest level of interest.
- Many access the drugs through private healthcare rather than public health services.
In conclusion, experts caution that while the jabs are potent tools for weight loss, they are not a magic fix and maintained weight loss likely depends on integrated lifestyle management.