New research suggests that people who discontinue popular GLP-1 drugs like Wegovy and Mounjaro can put back on lost weight far faster than those who stop conventional lifestyle programs.
Published data in a leading health publication demonstrates that while overweight individuals frequently drop a large proportion of their total mass while on the medication, the weight comes back at an average rate of nearly a kilo each month after stopping.
"Individuals purchasing such medications should be cognizant of the potential of fast weight regain when the therapy ends," warns lead investigator Dr. Susan Jebb.
That rate of regain suggests a reversion to pre-treatment mass in about a year and a half.
Analyzing Treatments
The analysis, which reviewed dozens of trials involving thousands of participants, compared the outcomes of the injectable medications with conventional dieting.
Researchers point out that people who shed pounds through diet and exercise typically see a more gradual creep back—approximately 100 grams monthly—after stopping.
Explaining the Fast Regain
Experts suggest the way of the jabs explains the heightened weight return.
The injections imitate a body's own chemical called glucagon-like peptide-1, which helps regulate hunger.
"Sustained high doses of GLP-1 concentrations several times higher than normal could lead to the body to generate a reduced amount of its endogenous hormone, and could diminish responsiveness to its actions," noted Dr. Adam Collins, a dietetics researcher.
"Stopping of this hormone supplement results in appetite is uncontrolled, making overeating a significant risk."
A Chronic Issue?
Medical guidelines recommend the jabs for individuals with obesity-related health risks, accompanied by prescribed lifestyle changes.
Professionals say that, considering the likelihood of weight regain, the therapy should be considered life-long.
This opinion is reinforced by pharmaceutical companies, who say that the findings "highlight the long-term character of excess weight," comparing it to managing diseases like high blood pressure.
Patient Experiences
People who have come off the medication describe a powerful return of cravings.
"I experienced a trigger activating and you're instantly ravenous," recalled one woman.
The struggle is exacerbated if patients have not established lasting dietary or behavioural changes during treatment.
Growing Use
Survey data show that millions of adults in the UK have tried these injections in the past year, with interest 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 medications through private healthcare rather than the NHS.
In conclusion, clinicians stress that while the jabs are powerful agents for shedding pounds, they are not a magic fix and maintained weight loss hinges on combined lifestyle management.
