New research indicates that individuals who come off blockbuster weight-loss injections like Wegovy and Mounjaro can put back on shed pounds at a significantly accelerated pace than those who halt conventional diet and exercise regimens.
Published data in a leading medical journal shows that while overweight individuals frequently drop substantial amounts of their body weight while using the jabs, the weight returns at an average rate of 0.8 kg per month upon discontinuation.
"People buying these medications must be informed of the potential of rapid rebound weight gain when the therapy is stopped," cautioned lead investigator Dr. Susan Jebb.
This pace of regain means a reversion to starting weight within about one and a half years.
Analyzing Approaches
The analysis, which examined 37 of trials involving thousands of participants, contrasted the outcomes of these new drugs with older methods.
Scientists emphasize that people who lose weight through dieting typically experience a more gradual weight regain—around 0.1 kg a month—once they finish.
Explaining the Quick Rebound
Experts believe the mode of action of the jabs explains the heightened weight return.
These medications imitate a body's own chemical called glucagon-like peptide-1, which moderates feelings of fullness.
"Sustained high doses of GLP-1 concentrations far above than the body's typical production could lead to the body to generate a reduced amount of its own natural GLP-1, and could diminish responsiveness to its actions," said Dr. Adam Collins, a dietetics researcher.
"Withdrawal of this hormone supplement means appetite is unsuppressed, making overeating far more likely."
A Lifelong Issue?
Health authorities advise the jabs for people with obesity-related medical conditions, alongside recommended lifestyle changes.
Many experts contend that, due to the likelihood of relapse, the therapy might need to be life-long.
This perspective is echoed by pharmaceutical companies, who say that the findings "emphasize the long-term nature of excess weight," similar to managing diseases like high blood pressure.
User Testimonies
Users who have stopped the medication describe a sudden return of hunger.
"I experienced a trigger that goes on and you're instantly starving," said one woman.
The struggle is compounded if individuals have not adopted permanent dietary or behavioural modifications during therapy.
Significant Interest
Figures suggest that a significant number of people in the UK have used weight-loss jabs in the past year, with interest remaining high.
- Adoption is greater among women than men.
- The middle-aged demographic shows the highest level of interest.
- A large proportion access the drugs through private prescriptions rather than public health services.
Ultimately, researchers emphasize that while the jabs are effective tools for shedding pounds, they are not a standalone fix and maintained weight loss hinges on integrated lifestyle management.
