Fresh analysis reveals that individuals who come off blockbuster weight-loss injections like Wegovy and Mounjaro tend to recover reduced body mass much more quickly than those who halt conventional lifestyle regimens.
Research printed in a major medical journal shows that while obese people can lose about a fifth of their body weight while on the medication, the weight is regained at an average rate of 0.8 kg per month once they quit.
"People using such medications should be cognizant of the danger of fast weight regain when the therapy concludes," cautioned lead investigator Dr. Susan Jebb.
This pace of regain implies a reversion to starting weight in about 18 months.
Analyzing Therapies
The study, which reviewed dozens of studies involving thousands of patients, compared the effects of GLP-1 agonists with conventional dieting.
The team emphasize that individuals who lose weight through diet and exercise typically experience a slower creep back—approximately 100 grams monthly—once they finish.
Explaining the Rapid Rebound
Nutrition scientists propose the way of the injections accounts for the amplified weight return.
The injections imitate a natural hormone called glucagon-like peptide-1, which helps regulate appetite.
"Long-term administration of GLP-1 concentrations far above than normal might result in the system to produce less of its own natural GLP-1, and may also reduce sensitivity to its actions," said Dr. Adam Collins, a dietetics researcher.
"Discontinuation of this medication means hunger is uncontrolled, making excessive eating far more likely."
An Ongoing Condition?
The NHS recommend the injections for people with weight-linked health risks, accompanied by prescribed diet and exercise modifications.
Many experts say that, considering the significant potential of relapse, the treatment is often life-long.
This perspective is supported by drug manufacturers, who note that the results "emphasize the chronic nature of excess weight," similar to managing diseases like diabetes.
Patient Testimonies
Users who have discontinued the jabs report a sudden return of appetite.
"It felt as if a switch flipping and you become extremely hungry," said an individual.
This difficulty is exacerbated if users have not established lasting lifestyle or habit modifications during treatment.
Growing Interest
Survey data suggest that millions of people in the UK have used weight-loss jabs in the past year, with demand continuing to grow.
- Adoption is more common among females compared to males.
- The 40s and 50s demographic shows the greatest usage rates.
- Many access the drugs through private healthcare rather than the NHS.
Finally, researchers emphasize that while these medications are powerful agents for shedding pounds, they are not a magic solution and lasting health benefits likely depends on integrated lifestyle support.
