Fresh analysis suggests that patients who stop using popular weight-loss injections like Wegovy and Mounjaro can put back on reduced body mass much more quickly than those who stop traditional lifestyle programs.
Research printed in a leading medical journal demonstrates that while overweight people can lose a large proportion of their total mass while on the medication, the weight is regained at an estimated rate of nearly a kilo each month upon discontinuation.
"Individuals purchasing these treatments should be cognizant of the risk of fast rebound weight gain when the treatment ends," stated expert Dr. Susan Jebb.
This pace of recovery implies a return to starting mass within about 18 months.
Comparing Therapies
The research, which looked at 37 of studies involving thousands of participants, contrasted the outcomes of GLP-1 agonists with older methods.
Scientists point out that people who shed pounds through dieting generally have a slower creep back—perhaps 0.1 kg a month—post-intervention.
Explaining the Fast Regain
Doctors suggest the way of the jabs explains the accelerated rebound.
The injections mimic a natural hormone called GLP-1, which helps regulate feelings of fullness.
"Artificially providing GLP-1 concentrations far above than the body's typical production could lead to the system to produce less of its endogenous GLP-1, and may also lessen sensitivity to its actions," explained Dr. Adam Collins, a dietetics expert.
"Discontinuation of this hormone supplement means hunger is uncontrolled, making excessive eating a significant risk."
A Lifelong Disease?
Health authorities recommend the jabs for individuals with weight-linked medical conditions, alongside recommended diet and exercise modifications.
A number of clinicians say that, given the high risk of weight regain, the treatment should be considered long-term.
This opinion is supported by pharmaceutical companies, who state that the results "highlight the chronic nature of excess weight," akin to managing diseases like high blood pressure.
Patient Accounts
Individuals who have stopped the medication explain a intense resurgence of appetite.
"It was like something flipping and you're instantly ravenous," said a patient.
This challenge is exacerbated if patients have not adopted lasting dietary or behavioural modifications during therapy.
Widespread Adoption
Survey data show that a significant number of people in the UK have used weight-loss jabs in the last 12 months, with interest continuing to grow.
- Use is more common among females than males.
- The 40s and 50s age group shows the highest usage rates.
- A large proportion obtain the medications through private healthcare rather than public health services.
Ultimately, experts emphasize that while these medications are effective agents for weight loss, they are not a standalone fix and maintained weight loss relies on integrated behavioural support.
