Fresh analysis reveals that people who come off popular GLP-1 drugs like Mounjaro or Wegovy tend to recover reduced body mass much more quickly than those who stop conventional diet and exercise programs.
Published data in a leading medical journal demonstrates that while overweight individuals frequently drop substantial amounts of their total mass while undergoing treatment, the weight returns at an average rate of nearly a kilo each month after stopping.
"Individuals using these medications must be cognizant of the risk of fast weight regain when the treatment ends," cautioned lead investigator Dr. Susan Jebb.
That rate of regain means a return to starting weight in about a year and a half.
Analyzing Treatments
The analysis, which examined 37 of trials involving thousands of participants, contrasted the results of GLP-1 agonists with older methods.
Scientists note that individuals who lose weight through dieting typically have a less rapid weight regain—around 0.1 kg a month—post-intervention.
Understanding the Rapid Rebound
Doctors suggest the mode of action of the jabs explains the amplified weight return.
GLP-1 drugs mimic a natural hormone called glucagon-like peptide-1, which moderates appetite.
"Long-term administration of the hormone concentrations far above than normal might result in the system to generate a reduced amount of its own natural hormone, and may also lessen responsiveness to its actions," said Dr. Adam Collins, a nutrition specialist.
"Withdrawal of this hormone supplement leads to hunger is unsuppressed, making overeating much more probable."
A Lifelong Condition?
The NHS advise the jabs for individuals with obesity-related health risks, alongside prescribed diet and exercise modifications.
Many experts contend that, due to the high risk of relapse, the therapy might need to be long-term.
This opinion is echoed by drug manufacturers, who state that the results "underscore the chronic nature of excess weight," comparing it to managing diseases like hypertension.
User Experiences
People who have stopped the medication report a powerful resurgence of appetite.
"It was like a trigger flipping and you're instantly ravenous," described an individual.
This difficulty is exacerbated if patients have not adopted permanent lifestyle or habit changes during therapy.
Widespread Use
Survey data show that a significant number of people in the UK have tried weight-loss jabs in the past year, with desire remaining high.
- Use is greater among females than men.
- The middle-aged age group shows the greatest level of interest.
- A large proportion access the drugs through private healthcare rather than public health services.
In conclusion, researchers stress that while these medications are powerful tools for shedding pounds, they are not a standalone solution and lasting health benefits hinges on combined behavioural support.
