A recent study indicates that patients who discontinue new GLP-1 drugs like semaglutide or tirzepatide can put back on lost weight much more quickly than those who halt conventional lifestyle regimens.
Published data in a major health publication shows that while overweight people often shed 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 after stopping.
"Users using these drugs should be aware of the risk of quick rebound weight gain when the therapy ends," cautioned researcher Dr. Susan Jebb.
That rate of recovery implies a reversion to original mass in about 18 months.
Comparing Treatments
The analysis, which reviewed dozens of studies involving thousands of patients, compared the outcomes of GLP-1 agonists with other pills.
Scientists point out that people who shed pounds through diet and exercise typically have a slower creep back—approximately 0.1 kg a month—once they finish.
Explaining the Rapid Rebound
Nutrition scientists propose the way of the injections is key to understanding the amplified weight return.
The injections mimic a body's own chemical called GLP-1, which helps regulate hunger.
"Artificially providing the hormone levels several times higher than normal might result in the body to produce less of its own natural GLP-1, and could diminish sensitivity to its effects," explained Dr. Adam Collins, a nutrition researcher.
"Discontinuation of this hormone supplement means appetite is unsuppressed, making overeating much more probable."
A Lifelong Condition?
Medical guidelines suggest the injections for people with obesity-related health risks, accompanied by prescribed lifestyle changes.
Many experts contend that, considering the high risk of weight regain, the therapy might need to be long-term.
This opinion is echoed by drug manufacturers, who note that the results "highlight the persistent character of excess weight," similar to managing conditions like high blood pressure.
Patient Testimonies
People who have discontinued the medication report a intense resurgence of hunger.
"It was like something that goes on and you become ravenous," recalled a patient.
The struggle is exacerbated if patients have not adopted lasting lifestyle or habit modifications during therapy.
Significant Adoption
Figures show that millions of adults in the UK have used weight-loss jabs in the last 12 months, with demand being substantial.
- Use is greater among women than males.
- The 40s and 50s demographic shows the highest usage rates.
- Many obtain the medications through private healthcare rather than the NHS.
Finally, researchers caution that while these medications are potent tools for weight loss, they are not a magic cure and maintained weight loss likely depends on ongoing lifestyle changes.
