New research indicates that patients who stop using new GLP-1 drugs like Mounjaro or Wegovy tend to recover lost weight much more quickly than those who end conventional lifestyle regimens.
Published data in a major medical journal shows that while overweight individuals often shed a large proportion of their total mass while using the jabs, the weight returns at an average rate of nearly a kilo each month upon discontinuation.
"Individuals purchasing such medications must be aware of the risk of rapid weight regain when the treatment ends," cautioned researcher Dr. Susan Jebb.
That rate of regain implies a return to pre-treatment weight in about a year and a half.
Comparing Therapies
The analysis, which examined 37 of studies involving over 9,000 of participants, compared the outcomes of GLP-1 agonists with other pills.
Scientists note that people who shed pounds through lifestyle changes alone generally experience a slower creep back—approximately 100 grams monthly—after stopping.
Explaining the Rapid Regain
Doctors propose the mechanism of the injections is key to understanding the heightened rebound.
These medications copy a body's own chemical called GLP-1, which controls hunger.
"Artificially providing the hormone levels several times higher than normal may cause the body to produce less of its own natural GLP-1, and may also diminish sensitivity to its effects," noted Dr. Adam Collins, a nutrition expert.
"Discontinuation of this GLP-1 'fix' means appetite is no longer kept in check, making excessive eating far more likely."
A Lifelong Condition?
The NHS recommend the jabs for people with weight-linked health risks, accompanied by recommended lifestyle changes.
A number of clinicians argue that, considering the likelihood of relapse, the treatment is often life-long.
This view is supported by pharmaceutical companies, who note that the findings "emphasize the persistent character of excess weight," akin to managing diseases like hypertension.
User Testimonies
Individuals who have stopped the jabs describe a intense return of appetite.
"I experienced a switch that goes on and you become starving," described an individual.
The struggle is compounded if users have not adopted sustainable dietary or behavioural changes during treatment.
Widespread Interest
Figures suggest that millions of people in the UK have used weight-loss jabs in the past year, with interest being substantial.
- Use is higher among women compared to males.
- The 40s and 50s demographic shows the highest level of interest.
- Many obtain the drugs through private healthcare rather than the NHS.
In conclusion, researchers stress that while the jabs are effective tools for shedding pounds, they are not a standalone cure and lasting health benefits relies on ongoing lifestyle changes.