Fresh analysis indicates that people who discontinue popular GLP-1 drugs like semaglutide or tirzepatide can put back on lost weight far faster than those who end traditional lifestyle programs.
Research printed in a prominent medical journal points out that while obese people can lose a large proportion of their total mass while using the jabs, the weight comes back at an average rate of nearly a kilo each month after stopping.
"People using such medications should be aware of the potential of quick weight regain when the medication is stopped," warns lead investigator Dr. Susan Jebb.
This pace of recovery suggests a reversion to original mass within about a year and a half.
Weighing Approaches
The analysis, which reviewed 37 of studies involving over 9,000 of patients, compared the results of GLP-1 agonists with conventional dieting.
Researchers note that individuals who shed pounds through diet and exercise usually experience a slower creep back—perhaps 100 grams monthly—once they finish.
Understanding the Rapid Regain
Nutrition scientists believe the mode of action of the injections is key to understanding the amplified weight return.
GLP-1 drugs imitate a natural hormone called glucagon-like peptide-1, which controls feelings of fullness.
"Artificially providing GLP-1 concentrations far above than normal could lead to the system to generate a reduced amount of its endogenous GLP-1, and could lessen responsiveness to its actions," said Dr. Adam Collins, a dietetics expert.
"Stopping of this hormone supplement results in hunger is no longer kept in check, making overeating far more likely."
A Chronic Disease?
Medical guidelines advise the jabs for individuals with obesity-related health risks, accompanied by prescribed lifestyle changes.
Many experts argue that, due to the likelihood of weight regain, the therapy should be considered ongoing.
This view is echoed by pharmaceutical companies, who note that the results "highlight the chronic nature of obesity," similar to managing conditions like high blood pressure.
Patient Testimonies
Individuals who have come off the jabs describe a powerful resurgence of cravings.
"I experienced a switch activating and you become extremely hungry," described one woman.
The struggle is worsened if users have not developed sustainable dietary or behavioural modifications during therapy.
Growing Adoption
Figures indicate that a significant number of people in the UK have used weight-loss jabs in the last 12 months, with desire continuing to grow.
- Adoption is greater among females compared to males.
- The middle-aged age group shows the greatest usage rates.
- Many access the medications through private healthcare rather than the NHS.
Ultimately, clinicians caution that while the jabs are potent agents for shedding pounds, they are not a magic cure and maintained weight loss likely depends on ongoing behavioural changes.
