Fresh analysis indicates that patients who come off blockbuster weight-loss injections like Mounjaro or Wegovy can put back on reduced body mass at a significantly accelerated pace than those who end traditional diet and exercise programs.
Published data in a prominent medical journal demonstrates that while overweight people often shed a large proportion of their body weight while undergoing treatment, the weight returns at an average rate of 0.8 kg per month once they quit.
"Users purchasing such treatments should be informed of the risk of fast weight regain when the treatment is stopped," cautioned expert Dr. Susan Jebb.
This pace of regain suggests a reversion to starting weight in about one and a half years.
Comparing Treatments
The analysis, which examined dozens of studies involving over 9,000 of participants, contrasted the results of the injectable medications with conventional dieting.
Scientists note that individuals who lose weight through diet and exercise typically experience a slower creep back—perhaps 0.1 kg a month—once they finish.
Understanding the Quick Rebound
Nutrition scientists propose the mechanism of the jabs explains the heightened regain.
GLP-1 drugs mimic a body's own chemical called GLP-1, which controls hunger.
"Artificially providing the hormone levels several times higher than normal could lead to the system to generate a reduced amount of its endogenous hormone, and may also diminish sensitivity to its effects," explained Dr. Adam Collins, a dietetics researcher.
"Withdrawal of this medication results in appetite is no longer kept in check, making excessive eating far more likely."
An Ongoing Condition?
Medical guidelines suggest the jabs for individuals with weight-linked medical conditions, alongside prescribed lifestyle changes.
Professionals say that, considering the significant potential of weight regain, the treatment should be considered life-long.
This perspective is supported by drug manufacturers, who state that the findings "emphasize the persistent character of excess weight," akin to managing diseases like high blood pressure.
Patient Testimonies
Users who have come off the jabs report a intense resurgence of hunger.
"I experienced a switch activating and you become starving," described an individual.
This challenge is worsened if users have not adopted sustainable dietary or behavioural changes during therapy.
Growing Adoption
Recent estimates suggest that a significant number of adults in the UK have used these injections in the last 12 months, with desire remaining high.
- Use is higher among females compared to men.
- The 40s and 50s age group shows the highest usage rates.
- A large proportion access the drugs through private prescriptions rather than public health services.
In conclusion, experts stress that while these medications are powerful tools for weight loss, they are not a standalone solution and long-term success hinges on ongoing behavioural changes.
