A recent study indicates that patients who discontinue blockbuster weight-loss injections like semaglutide or tirzepatide tend to recover reduced body mass far faster than those who end traditional lifestyle regimens.
Published data in a major medical journal shows that while overweight individuals often shed a large proportion of their total mass while undergoing treatment, the weight comes back at an estimated rate of 0.8 kg per month once they quit.
"Users using such medications need to be cognizant of the danger of quick weight regain when the medication concludes," cautioned expert Dr. Susan Jebb.
This pace of recovery suggests a return to original weight within about 18 months.
Comparing Therapies
The study, which looked at dozens of trials involving thousands of participants, contrasted the effects of these new drugs with other pills.
Scientists point out that individuals who shed pounds through dieting typically have a slower creep back—approximately 100 grams monthly—once they finish.
Explaining the Fast Regain
Experts suggest the mechanism of the drugs is key to understanding the amplified rebound.
The injections imitate a natural hormone called GLP-1, which moderates appetite.
"Long-term administration of GLP-1 levels several times higher than the body's typical production could lead to the body to produce less of its own natural hormone, and could reduce sensitivity to its actions," said Dr. Adam Collins, a dietetics researcher.
"Discontinuation of this GLP-1 'fix' means hunger is uncontrolled, making binge eating much more probable."
A Chronic Issue?
The NHS advise the injections for people with obesity-related medical conditions, accompanied by recommended diet and exercise modifications.
Many experts argue that, considering the significant potential of relapse, the therapy is often long-term.
This view is supported by pharmaceutical companies, who say that the findings "highlight the persistent nature of obesity," akin to managing conditions like hypertension.
Patient Accounts
Users who have come off the jabs report a intense return of appetite.
"It was like a trigger that goes on and you're instantly starving," described one woman.
This difficulty is compounded if individuals have not developed sustainable dietary or behavioural changes during therapy.
Significant Adoption
Recent estimates indicate that millions of adults in the UK have tried these injections in the past year, with interest remaining high.
- Adoption is higher among females than men.
- The 40s and 50s demographic shows the greatest level of interest.
- Many access the medications through private prescriptions rather than public health services.
In conclusion, clinicians emphasize that while the jabs are effective tools for weight loss, they are not a permanent solution and maintained weight loss likely depends on integrated behavioural management.