Fresh analysis reveals that individuals who discontinue new weight-loss injections like Mounjaro or Wegovy can put back on lost weight much more quickly than those who stop conventional lifestyle plans.
Findings released in a major health publication demonstrates that while obese individuals frequently drop about a fifth of their total mass while undergoing treatment, the mass comes back at an average rate of 0.8 kg per month once they quit.
"People buying these treatments must be cognizant of the potential of quick weight regain when the therapy ends," cautioned lead investigator Dr. Susan Jebb.
Such speed of regain implies a return to starting weight in about one and a half years.
Comparing Therapies
The research, which examined dozens of trials involving over 9,000 of participants, contrasted the outcomes of GLP-1 agonists with other pills.
Scientists note that individuals who shed pounds through dieting usually have a slower creep back—approximately 100 grams monthly—post-intervention.
The Reason for the Fast Rebound
Experts suggest the mode of action of the injections accounts for the accelerated rebound.
These medications imitate a body's own chemical called GLP-1, which controls feelings of fullness.
"Artificially providing 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 lessen sensitivity to its actions," said Dr. Adam Collins, a nutrition researcher.
"Stopping of this medication means hunger is no longer kept in check, making overeating much more probable."
A Lifelong Condition?
The NHS suggest the injections for individuals with weight-linked health risks, accompanied by prescribed diet and exercise modifications.
Professionals contend that, considering the likelihood of weight regain, the therapy should be considered long-term.
This view is echoed by drug manufacturers, who say that the findings "underscore the long-term nature of excess weight," similar to managing conditions like hypertension.
User Testimonies
Individuals who have discontinued the medication report a sudden return of cravings.
"I experienced a trigger that goes on and you're instantly ravenous," said an individual.
The struggle is compounded if individuals have not adopted sustainable dietary or behavioural modifications during therapy.
Growing Adoption
Recent estimates show that millions of people in the UK have tried weight-loss jabs in the past year, with interest continuing to grow.
- Adoption is higher among women compared to males.
- The 40s and 50s age group shows the greatest usage rates.
- Many access the drugs through private prescriptions rather than the NHS.
In conclusion, clinicians caution that while GLP-1 drugs are potent agents for weight loss, they are not a standalone solution and long-term success likely depends on integrated lifestyle support.
