A recent study suggests that people who come off blockbuster GLP-1 drugs like Wegovy and Mounjaro tend to recover reduced body mass at a significantly accelerated pace than those who stop conventional diet and exercise programs.
Published data in a major medical journal points out that while overweight individuals can lose substantial amounts of their total mass while using the jabs, the mass is regained at an average rate of 0.8 kg per month upon discontinuation.
"Individuals buying such treatments must be aware of the danger of rapid rebound weight gain when the therapy is stopped," warns lead investigator Dr. Susan Jebb.
This pace of recovery suggests a return to original weight within about a year and a half.
Comparing Approaches
The analysis, which reviewed 37 of studies involving thousands of participants, compared the outcomes of the injectable medications with conventional dieting.
The team emphasize that individuals who lose weight through diet and exercise usually experience a less rapid creep back—perhaps 100 grams monthly—after stopping.
Explaining the Rapid Regain
Nutrition scientists suggest the way of the injections accounts for the amplified regain.
GLP-1 drugs mimic a natural hormone called glucagon-like peptide-1, which controls hunger.
"Long-term administration of the hormone concentrations far above than normal might result in the system to produce less of its own natural GLP-1, and could reduce sensitivity to its effects," noted Dr. Adam Collins, a dietetics expert.
"Withdrawal of this medication means appetite is uncontrolled, making binge eating much more probable."
A Chronic Issue?
The NHS suggest the injections for people with obesity-related medical conditions, alongside recommended lifestyle changes.
Many experts argue that, given the likelihood of weight regain, the therapy should be considered ongoing.
This view is reinforced by pharmaceutical companies, who note that the results "underscore the persistent nature of excess weight," similar to managing conditions like high blood pressure.
User Experiences
People who have discontinued the jabs report a intense return of appetite.
"I experienced a trigger activating and you become ravenous," recalled an individual.
This challenge is exacerbated if individuals have not developed permanent lifestyle or habit changes during therapy.
Significant Interest
Recent estimates indicate that millions of people in the UK have used these injections in the past year, with demand remaining high.
- Adoption is greater among females than men.
- The middle-aged age group shows the greatest usage rates.
- A large proportion access the medications through private healthcare rather than public health services.
In conclusion, researchers stress that while GLP-1 drugs are effective tools for shedding pounds, they are not a standalone cure and maintained weight loss likely depends on integrated behavioural changes.
