Fresh analysis reveals that people who come off popular GLP-1 drugs like semaglutide or tirzepatide tend to recover lost weight much more quickly than those who halt traditional diet and exercise programs.
Published data in a major health publication demonstrates that while overweight individuals can lose about a fifth of their body weight while undergoing treatment, the mass comes back at an estimated rate of 0.8 kg per month once they quit.
"Individuals using these drugs should be cognizant of the potential of rapid weight regain when the treatment concludes," stated lead investigator Dr. Susan Jebb.
Such speed of regain suggests a reversion to starting weight in about 18 months.
Comparing Therapies
The study, which examined dozens of studies involving thousands of patients, compared the results of these new drugs with other pills.
The team emphasize that people who shed pounds through dieting typically experience a more gradual creep back—around 100 grams monthly—once they finish.
Understanding the Fast Regain
Nutrition scientists believe the mode of action of the drugs is key to understanding the heightened regain.
These medications mimic a body's own chemical called GLP-1, which controls hunger.
"Sustained high doses of the hormone levels several times higher than normal might result in the system to generate a reduced amount of its own natural GLP-1, and may also diminish responsiveness to its actions," noted Dr. Adam Collins, a nutrition researcher.
"Discontinuation of this hormone supplement results in appetite is uncontrolled, making excessive eating much more probable."
A Chronic Disease?
The NHS suggest the injections for individuals with weight-linked medical conditions, accompanied by prescribed diet and exercise modifications.
A number of clinicians contend that, considering the high risk of relapse, the therapy is often life-long.
This perspective is echoed by pharmaceutical companies, who state that the results "emphasize the persistent character of excess weight," similar to managing diseases like hypertension.
Patient Experiences
Users who have stopped the medication report a intense return of appetite.
"It was like something activating and you become ravenous," described an individual.
This challenge is worsened if patients have not developed lasting lifestyle or habit changes during treatment.
Significant Interest
Survey data show that millions of people in the UK have used weight-loss jabs in the past year, with desire continuing to grow.
- Use is more common among females than men.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion obtain the drugs through private prescriptions rather than the NHS.
Ultimately, experts emphasize that while the jabs are effective tools for shedding pounds, they are not a permanent cure and maintained weight loss hinges on ongoing lifestyle changes.
