A recent study reveals that patients who discontinue blockbuster GLP-1 drugs like Wegovy and Mounjaro can put back on shed pounds much more quickly than those who end traditional lifestyle regimens.
Findings released in a prominent health publication shows that while obese individuals frequently drop a large proportion of their body weight while undergoing treatment, the mass returns at an average rate of 0.8 kg per month upon discontinuation.
"Users using such treatments need to be cognizant of the risk of fast rebound weight gain when the therapy concludes," stated expert Dr. Susan Jebb.
Such speed of recovery suggests a reversion to starting weight in about 18 months.
Analyzing Treatments
The research, which examined dozens of trials involving thousands of participants, contrasted the outcomes of GLP-1 agonists with older methods.
Researchers point out that people who shed pounds through dieting usually experience a more gradual weight regain—approximately 100 grams monthly—once they finish.
The Reason for the Fast Rebound
Doctors suggest the mode of action of the drugs is key to understanding the amplified rebound.
GLP-1 drugs copy a body's own chemical called GLP-1, which moderates hunger.
"Long-term administration of GLP-1 levels far above than the body's typical production could lead to the system to generate a reduced amount of its own natural hormone, and could diminish sensitivity to its effects," explained Dr. Adam Collins, a dietetics researcher.
"Stopping of this hormone supplement results in appetite is unsuppressed, making overeating far more likely."
An Ongoing Issue?
Medical guidelines recommend the jabs for people with weight-linked health risks, alongside prescribed lifestyle changes.
Professionals say that, due to the likelihood of relapse, the therapy might need to be life-long.
This view is supported by pharmaceutical companies, who note that the findings "emphasize the chronic nature of obesity," comparing it to managing diseases like high blood pressure.
Patient Testimonies
People who have come off the medication explain a powerful return of hunger.
"I experienced something that goes on and I was suddenly ravenous," recalled one woman.
The struggle is exacerbated if users have not developed permanent dietary or behavioural modifications during treatment.
Growing Adoption
Survey data suggest that a significant number of adults in the UK have tried these injections in the last 12 months, with desire continuing to grow.
- Use is higher among females compared to males.
- The middle-aged age group shows the highest usage rates.
- Many access the medications through private prescriptions rather than the NHS.
Finally, researchers stress that while the jabs are effective agents for weight loss, they are not a magic solution and maintained weight loss relies on integrated behavioural support.
