Fresh analysis indicates that patients who stop using blockbuster slimming jabs like Mounjaro or Wegovy may regain shed pounds far faster than those who halt traditional diet and exercise regimens.
Published data in a major health publication demonstrates that while overweight individuals can lose substantial amounts of their total mass while undergoing treatment, the weight is regained at an estimated rate of nearly a kilo each month upon discontinuation.
"People buying such medications must be cognizant of the danger of fast rebound weight gain when the treatment ends," warns lead investigator Dr. Susan Jebb.
Such speed of recovery implies a reversion to starting weight within about a year and a half.
Comparing Therapies
The study, which reviewed dozens of studies involving over 9,000 of participants, compared the results of GLP-1 agonists with other pills.
Researchers emphasize that individuals who shed pounds through diet and exercise typically see a slower weight regain—around 0.1 kg a month—post-intervention.
Explaining the Rapid Regain
Doctors suggest the way of the injections accounts for the accelerated regain.
GLP-1 drugs mimic a body's own chemical called glucagon-like peptide-1, which helps regulate hunger.
"Sustained high doses of the hormone levels far above than the body's typical production could lead to the system to generate a reduced amount of its endogenous hormone, and could reduce sensitivity to its effects," said Dr. Adam Collins, a dietetics expert.
"Withdrawal of this GLP-1 'fix' means hunger is no longer kept in check, making excessive eating far more likely."
A Chronic Condition?
The NHS suggest the injections for individuals with weight-linked medical conditions, alongside prescribed lifestyle changes.
A number of clinicians contend that, due to the high risk of relapse, the treatment should be considered ongoing.
This view is supported by drug manufacturers, who say that the results "underscore the long-term nature of obesity," similar to managing conditions like diabetes.
Patient Accounts
Individuals who have discontinued the medication report a intense resurgence of appetite.
"I experienced something that goes on and you become starving," described a patient.
This challenge is exacerbated if individuals have not developed sustainable lifestyle or habit modifications during therapy.
Widespread Adoption
Figures show that a significant number of people in the UK have tried these injections in the last 12 months, with demand being substantial.
- Use is higher among females than men.
- The 40s and 50s demographic shows the highest usage rates.
- Many obtain the medications through private healthcare rather than the NHS.
Finally, experts emphasize that while these medications are potent agents for weight loss, they are not a magic fix and lasting health benefits relies on integrated behavioural support.
