Fresh analysis reveals that individuals who stop using popular GLP-1 drugs like Mounjaro or Wegovy tend to recover shed pounds far faster than those who end conventional diet and exercise plans.
Published data in a prominent health publication demonstrates that while overweight people frequently drop a large proportion of their total mass while on the medication, the weight comes back at an average rate of 0.8 kg per month upon discontinuation.
"People buying these treatments need to be aware of the potential of fast weight regain when the treatment ends," warns lead investigator Dr. Susan Jebb.
This pace of regain suggests a reversion to original mass in about a year and a half.
Weighing Therapies
The research, which reviewed 37 of studies involving thousands of participants, compared the outcomes of the injectable medications with conventional dieting.
Researchers note that individuals who lose weight through dieting generally experience a slower creep back—around 0.1 kg a month—post-intervention.
Understanding the Fast Regain
Nutrition scientists suggest the mode of action of the injections accounts for the accelerated regain.
The injections mimic a body's own chemical called glucagon-like peptide-1, which controls appetite.
"Sustained high doses of the hormone concentrations several times higher than the body's typical production may cause the system to produce less of its own natural GLP-1, and may also diminish sensitivity to its actions," noted Dr. Adam Collins, a dietetics specialist.
"Withdrawal of this GLP-1 'fix' leads to hunger is uncontrolled, making excessive eating much more probable."
A Chronic Issue?
The NHS suggest the jabs for people with weight-linked medical conditions, alongside prescribed lifestyle changes.
Professionals argue that, given the high risk of weight regain, the therapy might need to be ongoing.
This view is echoed by pharmaceutical companies, who note that the results "underscore the persistent nature of obesity," akin to managing diseases like diabetes.
Patient Accounts
Users who have come off the jabs report a intense resurgence of cravings.
"I experienced something flipping and I was suddenly starving," described an individual.
The struggle is exacerbated if users have not established sustainable dietary or behavioural changes during therapy.
Growing Adoption
Figures show that a significant number of people in the UK have used weight-loss jabs in the past year, with demand remaining high.
- Adoption is more common among females compared to men.
- The 40s and 50s demographic shows the greatest usage rates.
- Many obtain the drugs through private prescriptions rather than public health services.
Ultimately, experts stress that while the jabs are powerful agents for shedding pounds, they are not a magic fix and long-term success hinges on integrated lifestyle management.
