Fresh analysis indicates that patients who stop using blockbuster slimming jabs like semaglutide or tirzepatide may regain shed pounds at a significantly accelerated pace than those who stop traditional lifestyle plans.
Published data in a prominent health publication shows that while overweight individuals frequently drop substantial amounts of their total mass while undergoing treatment, the mass is regained at an estimated rate of 0.8 kg per month after stopping.
"People purchasing such treatments need to be aware of the potential of fast weight regain when the treatment ends," warns expert Dr. Susan Jebb.
This pace of recovery means a reversion to starting mass within about one and a half years.
Weighing Therapies
The research, which looked at 37 of trials involving thousands of participants, compared the results of GLP-1 agonists with older methods.
Scientists point out that people who shed pounds through lifestyle changes alone usually see a less rapid creep back—approximately 100 grams monthly—post-intervention.
The Reason for the Quick Regain
Doctors suggest the mechanism of the injections explains the heightened rebound.
GLP-1 drugs copy a natural hormone called glucagon-like peptide-1, which controls hunger.
"Long-term administration of the hormone levels several times higher than the body's typical production could lead to the body to generate a reduced amount of its endogenous GLP-1, and could diminish responsiveness to its actions," said Dr. Adam Collins, a dietetics researcher.
"Discontinuation of this hormone supplement means hunger is unsuppressed, making excessive eating far more likely."
A Lifelong Issue?
Health authorities advise the jabs for individuals with obesity-related medical conditions, accompanied by prescribed diet and exercise modifications.
A number of clinicians argue that, due to the significant potential of relapse, the treatment might need to be long-term.
This perspective is reinforced by pharmaceutical companies, who note that the findings "underscore the long-term nature of obesity," akin to managing diseases like diabetes.
Patient Experiences
Users who have come off the jabs report a sudden return of cravings.
"It was like a switch flipping and I was suddenly starving," recalled one woman.
This difficulty is compounded if individuals have not adopted permanent dietary or behavioural changes during treatment.
Growing Use
Survey data suggest that millions of adults in the UK have tried weight-loss jabs in the last 12 months, with interest being substantial.
- Adoption is more common among women than males.
- The middle-aged age group shows the greatest level of interest.
- Many obtain the drugs through private prescriptions rather than the NHS.
In conclusion, researchers stress that while the jabs are potent agents for weight loss, they are not a magic fix and maintained weight loss likely depends on combined lifestyle management.