Fresh analysis suggests that individuals who come off popular GLP-1 drugs like semaglutide or tirzepatide can put back on shed pounds at a significantly accelerated pace than those who end traditional diet and exercise plans.
Published data in a prominent medical journal demonstrates that while obese people often shed a large proportion of their body weight while undergoing treatment, the weight comes back at an estimated rate of 0.8 kg per month once they quit.
"Individuals purchasing these treatments should be informed of the potential of fast rebound weight gain when the therapy is stopped," cautioned expert Dr. Susan Jebb.
Such speed of recovery suggests a reversion to starting mass in about one and a half years.
Comparing Therapies
The analysis, which looked at dozens of trials involving thousands of participants, contrasted the outcomes of these new drugs with conventional dieting.
The team point out that people who lose weight through lifestyle changes alone generally experience a more gradual creep back—perhaps 100 grams monthly—post-intervention.
The Reason for the Fast Rebound
Nutrition scientists believe the mechanism of the jabs explains the amplified weight return.
The injections imitate a body's own chemical called glucagon-like peptide-1, which helps regulate appetite.
"Artificially providing the hormone concentrations several times higher than normal could lead to the body to produce less of its endogenous GLP-1, and could reduce sensitivity to its actions," said Dr. Adam Collins, a nutrition expert.
"Stopping of this medication results in hunger is unsuppressed, making binge eating a significant risk."
An Ongoing Condition?
The NHS recommend the injections for individuals with weight-linked medical conditions, accompanied by recommended diet and exercise modifications.
Many experts argue that, due to the high risk of relapse, the treatment should be considered life-long.
This perspective is echoed by drug manufacturers, who say that the results "highlight the chronic nature of excess weight," akin to managing diseases like hypertension.
Patient Testimonies
Users who have stopped the jabs explain a sudden resurgence of appetite.
"It felt as if a switch activating and you're instantly extremely hungry," described one woman.
This challenge is exacerbated if individuals have not adopted sustainable dietary or behavioural modifications during therapy.
Significant Use
Survey data suggest that millions of adults in the UK have tried these injections in the past year, with desire remaining high.
- Adoption is higher among women than males.
- The 40s and 50s age group shows the highest usage rates.
- Many access the medications through private prescriptions rather than public health services.
Finally, experts emphasize that while the jabs are powerful agents for shedding pounds, they are not a permanent fix and maintained weight loss hinges on combined lifestyle changes.
