New research reveals that patients who come off popular GLP-1 drugs like Mounjaro or Wegovy may regain reduced body mass far faster than those who end conventional lifestyle regimens.
Published data in a prominent medical journal points out that while obese individuals often shed a large proportion of their total mass while on the medication, the weight comes back at an average rate of 0.8 kg per month upon discontinuation.
"Individuals using such treatments must be informed of the potential of quick weight regain when the treatment is stopped," cautioned researcher Dr. Susan Jebb.
This pace of regain suggests a reversion to pre-treatment weight within about one and a half years.
Comparing Therapies
The analysis, which looked at dozens of studies involving thousands of participants, compared the effects of the injectable medications with older methods.
Scientists note that individuals who shed pounds through dieting typically have a slower weight regain—approximately 100 grams monthly—after stopping.
The Reason for the Fast Regain
Doctors suggest the mechanism of the drugs accounts for the heightened weight return.
The injections mimic a natural hormone called GLP-1, which moderates feelings of fullness.
"Long-term administration of the hormone levels far above than the body's typical production could lead to the body to generate a reduced amount of its own natural hormone, and could lessen responsiveness to its actions," noted Dr. Adam Collins, a nutrition expert.
"Stopping of this GLP-1 'fix' means appetite is no longer kept in check, making excessive eating far more likely."
A Chronic Disease?
The NHS recommend the jabs for individuals with weight-linked medical conditions, alongside prescribed diet and exercise modifications.
Professionals contend that, given the significant potential of weight regain, the treatment is often life-long.
This view is echoed by pharmaceutical companies, who say that the results "underscore the long-term nature of obesity," similar to managing diseases like hypertension.
Patient Testimonies
People who have come off the jabs explain a sudden resurgence of cravings.
"I experienced something flipping and I was suddenly extremely hungry," described one woman.
This challenge is exacerbated if individuals have not established permanent lifestyle or habit modifications during therapy.
Growing Use
Recent estimates show that millions of people in the UK have tried these injections in the last 12 months, with demand remaining high.
- Adoption is more common among females than men.
- The 40s and 50s demographic shows the greatest usage rates.
- A large proportion access the medications through private prescriptions rather than public health services.
In conclusion, researchers stress that while these medications are effective agents for shedding pounds, they are not a standalone fix and long-term success hinges on integrated behavioural support.
