New research indicates that individuals who discontinue blockbuster weight-loss injections like Wegovy and Mounjaro can put back on lost weight at a significantly accelerated pace than those who end traditional diet and exercise plans.
Published data in a leading health publication demonstrates that while overweight people frequently drop about a fifth of their body weight while undergoing treatment, the mass is regained at an average rate of nearly a kilo each month upon discontinuation.
"People purchasing such treatments should be informed of the danger of quick rebound weight gain when the treatment ends," stated expert Dr. Susan Jebb.
Such speed of recovery implies a reversion to pre-treatment weight in about one and a half years.
Weighing Treatments
The research, which reviewed dozens of trials involving thousands of patients, compared the results of the injectable medications with other pills.
Scientists point out that individuals who shed pounds through diet and exercise typically see a slower weight regain—approximately 0.1 kg a month—after stopping.
The Reason for the Rapid Regain
Experts suggest the way of the drugs explains the heightened regain.
The injections mimic a body's own chemical called GLP-1, which controls appetite.
"Sustained high doses of GLP-1 concentrations far above than the body's typical production might result in the system to produce less of its endogenous hormone, and could reduce responsiveness to its actions," noted Dr. Adam Collins, a dietetics expert.
"Stopping of this GLP-1 'fix' results in hunger is uncontrolled, making excessive eating a significant risk."
A Chronic Condition?
Medical guidelines suggest the jabs for individuals with obesity-related medical conditions, accompanied by recommended diet and exercise modifications.
A number of clinicians argue that, considering the high risk of weight regain, the treatment might need to be ongoing.
This perspective is echoed by drug manufacturers, who say that the results "underscore the persistent nature of excess weight," comparing it to managing conditions like diabetes.
User Testimonies
People who have stopped the medication describe a powerful return of appetite.
"It felt as if something flipping and you become ravenous," said one woman.
This challenge is compounded if users have not adopted lasting lifestyle or habit modifications during therapy.
Growing Use
Recent estimates show that millions of adults in the UK have used weight-loss jabs in the last 12 months, with demand being substantial.
- Use is more common among women than males.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion access the drugs through private prescriptions rather than the NHS.
Ultimately, researchers stress that while GLP-1 drugs are powerful tools for shedding pounds, they are not a standalone solution and maintained weight loss relies on ongoing lifestyle support.
