Fresh analysis indicates that people who stop using blockbuster weight-loss injections like Mounjaro or Wegovy can put back on lost weight much more quickly than those who end conventional lifestyle plans.
Research printed in a major medical journal demonstrates that while obese people can lose about a fifth of their total mass while on the medication, the mass comes back at an average rate of 0.8 kg per month after stopping.
"Individuals using such medications should be informed of the potential of rapid rebound weight gain when the medication concludes," stated lead investigator Dr. Susan Jebb.
This pace of regain means a reversion to starting weight in about one and a half years.
Analyzing Therapies
The study, which looked at dozens of studies involving thousands of participants, compared the effects of GLP-1 agonists with conventional dieting.
The team point out that individuals who shed pounds through dieting usually experience a less rapid creep back—perhaps 0.1 kg a month—after stopping.
Understanding the Rapid Rebound
Experts believe the way of the injections is key to understanding the heightened rebound.
These medications imitate a body's own chemical called glucagon-like peptide-1, which helps regulate hunger.
"Artificially providing the hormone concentrations several times higher than the body's typical production might result in the body to generate a reduced amount of its endogenous GLP-1, and could reduce sensitivity to its actions," explained Dr. Adam Collins, a nutrition specialist.
"Discontinuation of this GLP-1 'fix' results in hunger is uncontrolled, making excessive eating a significant risk."
A Lifelong Disease?
Medical guidelines recommend the jabs for individuals with obesity-related health risks, alongside recommended diet and exercise modifications.
A number of clinicians contend that, given the likelihood of weight regain, the treatment should be considered life-long.
This view is echoed by pharmaceutical companies, who state that the results "emphasize the long-term nature of excess weight," akin to managing diseases like high blood pressure.
User Accounts
Users who have stopped the jabs report a powerful resurgence of hunger.
"It was like a trigger that goes on and you're instantly starving," recalled an individual.
This challenge is compounded if individuals have not established lasting dietary or behavioural changes during therapy.
Growing Interest
Survey data show that a significant number of adults in the UK have tried these injections in the last 12 months, with desire continuing to grow.
- Adoption is more common among women compared to men.
- The 40s and 50s demographic shows the highest level of interest.
- Many access the medications through private healthcare rather than the NHS.
In conclusion, clinicians caution that while these medications are effective agents for weight loss, they are not a standalone solution and lasting health benefits relies on integrated lifestyle support.
