Fresh analysis reveals that individuals who come off popular GLP-1 drugs like Mounjaro or Wegovy tend to recover lost weight much more quickly than those who end conventional diet and exercise plans.
Research printed in a leading medical journal shows that while overweight people often shed substantial amounts of their total mass while using the jabs, the weight comes back at an average rate of 0.8 kg per month once they quit.
"Individuals using such drugs must be aware of the potential of rapid rebound weight gain when the therapy is stopped," stated lead investigator Dr. Susan Jebb.
That rate of regain means a return to pre-treatment weight within about a year and a half.
Weighing Approaches
The analysis, which looked at dozens of trials involving thousands of participants, compared the results of these new drugs with older methods.
Scientists point out that individuals who shed pounds through lifestyle changes alone generally see a less rapid weight regain—perhaps 0.1 kg a month—once they finish.
Understanding the Quick Regain
Experts propose the mechanism of the injections is key to understanding the accelerated weight return.
The injections imitate a body's own chemical called GLP-1, which moderates feelings of fullness.
"Long-term administration of GLP-1 levels several times higher than normal could lead to the body to generate a reduced amount of its endogenous hormone, and could reduce sensitivity to its effects," noted Dr. Adam Collins, a nutrition researcher.
"Stopping of this GLP-1 'fix' leads to hunger is uncontrolled, making overeating a significant risk."
A Chronic Disease?
Medical guidelines advise the jabs for individuals with weight-linked medical conditions, alongside prescribed diet and exercise modifications.
A number of clinicians say that, given the likelihood of relapse, the treatment might need to be ongoing.
This opinion is reinforced by drug manufacturers, who say that the results "emphasize the chronic character of obesity," comparing it to managing conditions like diabetes.
Patient Accounts
Individuals who have stopped the jabs report a powerful resurgence of hunger.
"It was like a switch that goes on and you become starving," described one woman.
This challenge is compounded if users have not adopted permanent dietary or behavioural changes during therapy.
Widespread Interest
Figures suggest that a significant number of people in the UK have used these injections in the past year, with demand remaining high.
- Adoption is greater among females compared to males.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion obtain the drugs through private healthcare rather than the NHS.
In conclusion, experts stress that while these medications are powerful agents for weight loss, they are not a standalone solution and lasting health benefits relies on combined lifestyle support.
