Fresh analysis suggests that patients who stop using new GLP-1 drugs like semaglutide or tirzepatide can put back on reduced body mass at a significantly accelerated pace than those who end conventional diet and exercise regimens.
Findings released in a leading health publication shows that while overweight people can lose about a fifth of their total mass while undergoing treatment, the weight comes back at an average rate of 0.8 kg per month once they quit.
"Users using these drugs must be cognizant of the potential of rapid rebound weight gain when the therapy is stopped," warns researcher Dr. Susan Jebb.
This pace of regain suggests a reversion to starting weight within about one and a half years.
Comparing Treatments
The study, which reviewed dozens of studies involving thousands of participants, compared the effects of GLP-1 agonists with older methods.
Scientists note that people who lose weight through diet and exercise typically see a less rapid weight regain—approximately 0.1 kg a month—once they finish.
Understanding the Rapid Rebound
Doctors suggest the way of the drugs explains the amplified rebound.
GLP-1 drugs mimic a body's own chemical called GLP-1, which controls hunger.
"Artificially providing GLP-1 concentrations far above than the body's typical production could lead to the system to produce less of its own natural GLP-1, and may also diminish responsiveness to its actions," noted Dr. Adam Collins, a nutrition specialist.
"Discontinuation of this hormone supplement results in appetite is uncontrolled, making binge eating a significant risk."
A Lifelong Issue?
Health authorities advise the jabs for people with weight-linked medical conditions, accompanied by prescribed lifestyle changes.
Professionals contend that, considering the significant potential of weight regain, the treatment is often life-long.
This opinion is supported by pharmaceutical companies, who note that the findings "underscore the persistent character of obesity," comparing it to managing conditions like high blood pressure.
Patient Testimonies
Users who have come off the medication explain a intense resurgence of appetite.
"It felt as if a trigger activating and you become ravenous," said a patient.
The struggle is compounded if individuals have not adopted permanent lifestyle or habit changes during treatment.
Growing Interest
Recent estimates indicate that a significant number of people in the UK have used these injections in the last 12 months, with demand being substantial.
- Use is greater among females than men.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion access the medications through private healthcare rather than public health services.
Ultimately, researchers stress that while the jabs are effective agents for shedding pounds, they are not a magic solution and maintained weight loss hinges on integrated behavioural changes.
