New research suggests that people who stop using blockbuster GLP-1 drugs like semaglutide or tirzepatide tend to recover lost weight much more quickly than those who end conventional lifestyle plans.
Research printed in a major medical journal shows that while overweight people often shed substantial amounts of their body weight while on the medication, the mass comes back at an average rate of 0.8 kg per month once they quit.
"People purchasing these treatments must be aware of the potential of rapid rebound weight gain when the therapy ends," stated expert Dr. Susan Jebb.
That rate of regain suggests a return to starting weight within about one and a half years.
Weighing Therapies
The study, which examined 37 of studies involving thousands of patients, contrasted the outcomes of these new drugs with other pills.
The team point out that individuals who lose weight through lifestyle changes alone generally have a more gradual weight regain—approximately 0.1 kg a month—once they finish.
Understanding the Quick Rebound
Nutrition scientists suggest the way of the jabs is key to understanding the accelerated rebound.
These medications imitate a body's own chemical called GLP-1, which moderates feelings of fullness.
"Artificially providing the hormone levels far above than the body's typical production could lead to the body to generate a reduced amount of its endogenous GLP-1, and could reduce responsiveness to its effects," explained Dr. Adam Collins, a dietetics expert.
"Withdrawal of this hormone supplement means hunger is unsuppressed, making binge eating much more probable."
An Ongoing Issue?
Medical guidelines suggest the injections for people with weight-linked medical conditions, accompanied by prescribed diet and exercise modifications.
A number of clinicians argue that, due to the likelihood of relapse, the treatment is often long-term.
This opinion is supported by drug manufacturers, who state that the findings "highlight the persistent nature of excess weight," akin to managing diseases like hypertension.
Patient Testimonies
People who have stopped the jabs report a sudden resurgence of cravings.
"I experienced something flipping and I was suddenly starving," said an individual.
This difficulty is exacerbated if patients have not adopted lasting dietary or behavioural modifications during therapy.
Widespread Use
Figures show that millions of adults in the UK have used these injections in the last 12 months, with interest remaining high.
- Use is more common among females than men.
- The middle-aged age group shows the highest level of interest.
- Many access the medications through private healthcare rather than public health services.
Ultimately, researchers caution that while these medications are effective agents for shedding pounds, they are not a standalone cure and maintained weight loss hinges on integrated lifestyle management.
