A recent study suggests that individuals who come off popular GLP-1 drugs like Mounjaro or Wegovy may regain shed pounds much more quickly than those who halt traditional diet and exercise regimens.
Findings released in a leading health publication demonstrates that while obese people can lose about a fifth of their total mass while undergoing treatment, the mass is regained at an average rate of 0.8 kg per month once they quit.
"Individuals purchasing such treatments need to be cognizant of the danger of rapid rebound weight gain when the therapy concludes," stated expert Dr. Susan Jebb.
That rate of regain implies a return to pre-treatment weight in about 18 months.
Comparing Therapies
The study, which examined dozens of studies involving thousands of participants, contrasted the outcomes of GLP-1 agonists with older methods.
Researchers note that individuals who lose weight through dieting typically see a more gradual weight regain—perhaps 0.1 kg a month—post-intervention.
The Reason for the Fast Regain
Nutrition scientists propose the mode of action of the jabs explains the amplified weight return.
These medications mimic a natural hormone called glucagon-like peptide-1, which helps regulate hunger.
"Artificially providing GLP-1 concentrations several times higher than the body's typical production might result in the system to generate a reduced amount of its endogenous hormone, and could lessen sensitivity to its actions," explained Dr. Adam Collins, a nutrition expert.
"Stopping of this medication leads to appetite is uncontrolled, making binge eating much more probable."
A Lifelong Issue?
The NHS recommend the jabs for people with weight-linked health risks, alongside recommended diet and exercise modifications.
Professionals say that, considering the significant potential of weight regain, the therapy might need to be ongoing.
This perspective is echoed by pharmaceutical companies, who note that the findings "underscore the long-term nature of obesity," comparing it to managing diseases like diabetes.
User Experiences
People who have come off the jabs report a intense return of cravings.
"It felt as if a switch activating and you become starving," said a patient.
The struggle is compounded if individuals have not adopted permanent dietary or behavioural changes during therapy.
Widespread Adoption
Recent estimates show that millions of adults in the UK have used these injections in the past year, with demand being substantial.
- Use is greater among women than males.
- The middle-aged demographic shows the greatest level of interest.
- Many access the drugs through private prescriptions rather than the NHS.
Finally, researchers emphasize that while these medications are effective tools for weight loss, they are not a magic fix and maintained weight loss likely depends on ongoing lifestyle changes.
