Fresh analysis suggests that people who discontinue popular GLP-1 drugs like Wegovy and Mounjaro tend to recover lost weight far faster than those who end conventional lifestyle plans.
Published data in a leading health publication points out that while overweight people can lose about a fifth of their total mass while on the medication, the mass is regained at an average rate of 0.8 kg per month after stopping.
"Users purchasing these drugs must be cognizant of the danger of fast rebound weight gain when the therapy concludes," cautioned researcher Dr. Susan Jebb.
This pace of regain suggests a return to pre-treatment mass within about a year and a half.
Comparing Therapies
The research, which reviewed 37 of studies involving thousands of patients, contrasted the effects of GLP-1 agonists with conventional dieting.
Researchers note that people who lose weight through lifestyle changes alone generally experience a slower creep back—perhaps 0.1 kg a month—once they finish.
Understanding the Quick Regain
Experts suggest the mechanism of the jabs explains the amplified regain.
The injections copy a body's own chemical called glucagon-like peptide-1, which helps regulate feelings of fullness.
"Artificially providing the hormone levels several times higher than the body's typical production might result in the system to generate a reduced amount of its endogenous GLP-1, and may also lessen responsiveness to its effects," explained Dr. Adam Collins, a nutrition expert.
"Discontinuation of this GLP-1 'fix' means hunger is no longer kept in check, making overeating much more probable."
A Lifelong Condition?
Medical guidelines advise the jabs for individuals with obesity-related health risks, alongside prescribed lifestyle changes.
A number of clinicians contend that, given the high risk of weight regain, the therapy might need to be ongoing.
This perspective is reinforced by pharmaceutical companies, who say that the results "underscore the chronic nature of obesity," comparing it to managing diseases like hypertension.
User Accounts
Individuals who have stopped the jabs describe a powerful return of appetite.
"It was like a switch that goes on and you become extremely hungry," recalled one woman.
This challenge is compounded if users have not adopted lasting lifestyle or habit modifications during therapy.
Growing Interest
Figures show that millions of people in the UK have tried weight-loss jabs in the last 12 months, with desire continuing to grow.
- Use is higher among females compared to males.
- The 40s and 50s demographic shows the greatest level of interest.
- A large proportion obtain the medications through private prescriptions rather than public health services.
Ultimately, researchers emphasize that while these medications are potent agents for shedding pounds, they are not a magic solution and long-term success likely depends on combined behavioural changes.
