New research suggests that people who discontinue blockbuster weight-loss injections like Wegovy and Mounjaro may regain shed pounds far faster than those who end traditional lifestyle regimens.
Findings released in a major medical journal demonstrates that while overweight people often shed substantial amounts of their body weight while using the jabs, the weight comes back at an average rate of nearly a kilo each month once they quit.
"People purchasing such drugs should be informed of the potential of fast weight regain when the therapy is stopped," cautioned researcher Dr. Susan Jebb.
This pace of regain suggests a return to pre-treatment weight in about 18 months.
Comparing Approaches
The analysis, which examined dozens of trials involving thousands of participants, compared the outcomes of these new drugs with older methods.
Researchers point out that individuals who lose weight through lifestyle changes alone generally have a more gradual creep back—perhaps 100 grams monthly—post-intervention.
The Reason for the Quick Rebound
Nutrition scientists believe the way of the drugs is key to understanding the heightened weight return.
GLP-1 drugs imitate a natural hormone called GLP-1, which controls feelings of fullness.
"Long-term administration of GLP-1 levels several times higher than normal may cause the system to produce less of its endogenous GLP-1, and could diminish responsiveness to its effects," noted Dr. Adam Collins, a dietetics specialist.
"Stopping of this GLP-1 'fix' means appetite is uncontrolled, making overeating far more likely."
A Chronic Issue?
Health authorities advise the jabs for people with obesity-related health risks, accompanied by recommended lifestyle changes.
A number of clinicians argue that, considering the significant potential of relapse, the therapy should be considered ongoing.
This view is supported by drug manufacturers, who say that the results "highlight the long-term nature of obesity," similar to managing diseases like diabetes.
User Testimonies
People who have discontinued the medication explain a sudden resurgence of cravings.
"I experienced a switch flipping and I was suddenly starving," recalled one woman.
The struggle is worsened if individuals have not established sustainable lifestyle or habit changes during treatment.
Significant Adoption
Survey data indicate that millions of people in the UK have tried weight-loss jabs in the past year, with demand continuing to grow.
- Use is more common among women than men.
- The middle-aged demographic shows the highest usage rates.
- A large proportion access the drugs through private healthcare rather than the NHS.
Ultimately, researchers emphasize that while the jabs are powerful agents for weight loss, they are not a standalone cure and long-term success relies on combined lifestyle support.
