A recent study indicates that people who come off popular weight-loss injections like Wegovy and Mounjaro can put back on lost weight at a significantly accelerated pace than those who end conventional diet and exercise programs.
Published data in a leading medical journal points out that while obese individuals often shed a large proportion of their body weight while undergoing treatment, the mass comes back at an average rate of nearly a kilo each month upon discontinuation.
"Individuals using such medications need to be cognizant of the potential of rapid rebound weight gain when the treatment concludes," warns lead investigator Dr. Susan Jebb.
Such speed of recovery means a reversion to original weight in about 18 months.
Comparing Therapies
The analysis, which looked at 37 of trials involving thousands of patients, contrasted the outcomes of GLP-1 agonists with older methods.
Researchers emphasize that individuals who shed pounds through diet and exercise typically see a more gradual weight regain—around 100 grams monthly—once they finish.
The Reason for the Rapid Regain
Nutrition scientists believe the mechanism of the drugs is key to understanding the amplified rebound.
The injections mimic a natural hormone called GLP-1, which helps regulate appetite.
"Long-term administration of GLP-1 concentrations far above than normal may cause the body to generate a reduced amount of its own natural hormone, and may also reduce responsiveness to its actions," explained Dr. Adam Collins, a nutrition specialist.
"Stopping of this hormone supplement leads to hunger is unsuppressed, making excessive eating far more likely."
A Lifelong Issue?
The NHS advise the injections for people with obesity-related medical conditions, accompanied by recommended lifestyle changes.
Professionals say that, given the significant potential of weight regain, the treatment might need to be long-term.
This view is reinforced by pharmaceutical companies, who note that the results "highlight the chronic nature of excess weight," comparing it to managing diseases like hypertension.
Patient Experiences
Individuals who have come off the jabs describe a intense resurgence of hunger.
"It felt as if a trigger flipping and I was suddenly starving," recalled an individual.
The struggle is worsened if patients have not developed sustainable dietary or behavioural changes during treatment.
Growing Adoption
Figures indicate that a significant number of adults in the UK have used these injections in the last 12 months, with desire continuing to grow.
- Adoption is higher among females than males.
- The middle-aged age group shows the greatest level of interest.
- A large proportion access the medications through private healthcare rather than the NHS.
In conclusion, experts emphasize that while GLP-1 drugs are powerful tools for shedding pounds, they are not a permanent cure and maintained weight loss relies on integrated lifestyle support.
