Fresh analysis reveals that patients who come off popular GLP-1 drugs like Wegovy and Mounjaro may regain lost weight far faster than those who halt conventional lifestyle plans.
Research printed in a prominent medical journal demonstrates that while obese people often shed a large proportion of their body weight while undergoing treatment, the weight returns at an average rate of 0.8 kg per month once they quit.
"Users purchasing such drugs must be cognizant of the risk of quick rebound weight gain when the treatment ends," cautioned lead investigator Dr. Susan Jebb.
Such speed of recovery implies a return to pre-treatment mass within about one and a half years.
Comparing Approaches
The analysis, which reviewed 37 of trials involving over 9,000 of patients, compared the effects of GLP-1 agonists with conventional dieting.
Researchers point out that people who shed pounds through lifestyle changes alone generally see a less rapid creep back—around 100 grams monthly—post-intervention.
The Reason for the Rapid Rebound
Experts believe the mode of action of the injections explains the accelerated weight return.
GLP-1 drugs imitate a natural hormone called glucagon-like peptide-1, which moderates feelings of fullness.
"Long-term administration of GLP-1 levels far above than the body's typical production might result in the body to produce less of its own natural hormone, and may also reduce sensitivity to its actions," noted Dr. Adam Collins, a dietetics specialist.
"Discontinuation of this hormone supplement leads to hunger is uncontrolled, making binge eating far more likely."
A Lifelong Issue?
Health authorities suggest the injections for people with obesity-related medical conditions, alongside recommended lifestyle changes.
Many experts argue that, due to the likelihood of weight regain, the therapy is often long-term.
This view is reinforced by drug manufacturers, who state that the results "underscore the long-term character of obesity," akin to managing diseases like high blood pressure.
User Testimonies
Users who have discontinued the medication report a intense resurgence of cravings.
"I experienced something that goes on and I was suddenly ravenous," described one woman.
The struggle is compounded if users have not adopted permanent lifestyle or habit modifications during treatment.
Growing Interest
Survey data suggest that a significant number of adults in the UK have used these injections in the last 12 months, with desire being substantial.
- Use is more common among females compared to men.
- The 40s and 50s age group shows the greatest usage rates.
- Many obtain the medications through private prescriptions rather than the NHS.
Ultimately, experts stress that while these medications are effective agents for shedding pounds, they are not a standalone solution and long-term success relies on ongoing lifestyle support.
