A recent study suggests that individuals who stop using blockbuster GLP-1 drugs like semaglutide or tirzepatide may regain reduced body mass much more quickly than those who halt conventional lifestyle regimens.
Published data in a prominent medical journal points out that while overweight people frequently drop about a fifth of their total mass while using the jabs, the weight returns at an estimated rate of nearly a kilo each month once they quit.
"Users using these medications should be aware of the danger of quick rebound weight gain when the therapy is stopped," warns expert Dr. Susan Jebb.
This pace of regain suggests a reversion to pre-treatment weight within about a year and a half.
Analyzing Approaches
The research, which looked at 37 of trials involving thousands of patients, compared the results of the injectable medications with conventional dieting.
The team emphasize that people who lose weight through lifestyle changes alone usually see a more gradual creep back—approximately 100 grams monthly—once they finish.
Understanding the Fast Regain
Doctors suggest the mode of action of the jabs is key to understanding the amplified rebound.
These medications mimic a body's own chemical called glucagon-like peptide-1, which controls feelings of fullness.
"Sustained high doses of GLP-1 concentrations several times higher than normal could lead to the body to produce less of its own natural hormone, and could diminish sensitivity to its effects," said Dr. Adam Collins, a nutrition researcher.
"Withdrawal of this hormone supplement means appetite is uncontrolled, making overeating a significant risk."
An Ongoing Condition?
The NHS suggest the injections for people with obesity-related medical conditions, accompanied by recommended diet and exercise modifications.
Professionals say that, considering the significant potential of weight regain, the treatment is often ongoing.
This view is echoed by drug manufacturers, who note that the results "underscore the chronic character of excess weight," akin to managing conditions like hypertension.
User Accounts
People who have stopped the medication explain a powerful resurgence of hunger.
"I experienced something flipping and you become starving," recalled a patient.
This challenge is worsened if users have not developed permanent lifestyle or habit changes during therapy.
Growing Adoption
Survey data indicate that a significant number of adults in the UK have used weight-loss jabs in the last 12 months, with desire being substantial.
- Adoption is greater among females than males.
- The middle-aged demographic shows the highest usage rates.
- Many access the medications through private healthcare rather than public health services.
Ultimately, experts stress that while these medications are powerful tools for weight loss, they are not a permanent solution and lasting health benefits hinges on integrated lifestyle support.
