Fresh analysis indicates that patients who come off blockbuster GLP-1 drugs like semaglutide or tirzepatide may regain lost weight much more quickly than those who halt traditional diet and exercise regimens.
Published data in a major health publication shows that while obese people frequently drop a large proportion of their body weight while on the medication, the mass comes back at an average rate of nearly a kilo each month once they quit.
"Individuals using such treatments need to be aware of the danger of quick rebound weight gain when the medication concludes," warns lead investigator Dr. Susan Jebb.
That rate of recovery suggests a return to pre-treatment weight in about one and a half years.
Weighing Therapies
The study, which looked at dozens of trials involving thousands of patients, contrasted the outcomes of GLP-1 agonists with other pills.
Researchers emphasize that individuals who lose weight through lifestyle changes alone typically have a slower weight regain—around 0.1 kg a month—once they finish.
Explaining the Fast Regain
Doctors suggest the way of the injections accounts for the heightened weight return.
GLP-1 drugs copy a body's own chemical called glucagon-like peptide-1, which helps regulate hunger.
"Artificially providing GLP-1 levels several times higher than normal could lead to the body to generate a reduced amount of its own natural GLP-1, and could reduce responsiveness to its actions," noted Dr. Adam Collins, a dietetics researcher.
"Withdrawal of this medication leads to appetite is uncontrolled, making overeating far more likely."
An Ongoing Condition?
The NHS suggest the injections for individuals with weight-linked medical conditions, accompanied by prescribed lifestyle changes.
Professionals contend that, due to the significant potential of weight regain, the treatment should be considered life-long.
This view is supported by drug manufacturers, who note that the results "emphasize the chronic character of obesity," akin to managing diseases like hypertension.
Patient Testimonies
Individuals who have come off the jabs report a powerful resurgence of appetite.
"It was like a trigger flipping and you become ravenous," said a patient.
This challenge is exacerbated if individuals have not developed permanent dietary or behavioural modifications during treatment.
Widespread Interest
Survey data indicate that a significant number of adults in the UK have used these injections in the last 12 months, with desire being substantial.
- Adoption is greater among women compared to men.
- The middle-aged age group shows the highest usage rates.
- A large proportion access the drugs through private healthcare rather than public health services.
Finally, researchers emphasize that while the jabs are effective tools for shedding pounds, they are not a magic cure and lasting health benefits hinges on combined lifestyle management.
