A recent study reveals that patients who stop using blockbuster GLP-1 drugs like semaglutide or tirzepatide tend to recover lost weight far faster than those who halt traditional lifestyle plans.
Published data in a major health publication demonstrates that while overweight people often shed about a fifth of their body weight while on the medication, the mass returns at an estimated rate of 0.8 kg per month after stopping.
"Users purchasing such drugs should be informed of the danger of fast rebound weight gain when the therapy concludes," cautioned researcher Dr. Susan Jebb.
That rate of regain suggests a return to original mass within about one and a half years.
Analyzing Therapies
The research, which looked at dozens of studies involving over 9,000 of participants, contrasted the effects of these new drugs with other pills.
Researchers note that people who shed pounds through diet and exercise generally experience a more gradual weight regain—around 0.1 kg a month—post-intervention.
Explaining the Quick Rebound
Nutrition scientists believe the mode of action of the jabs is key to understanding the amplified regain.
GLP-1 drugs copy a natural hormone called glucagon-like peptide-1, which controls appetite.
"Long-term administration of the hormone levels far above than normal could lead to the body to generate a reduced amount of its own natural GLP-1, and could diminish responsiveness to its effects," explained Dr. Adam Collins, a nutrition expert.
"Stopping of this medication means appetite is unsuppressed, making excessive eating far more likely."
An Ongoing Condition?
The NHS advise the injections for people with weight-linked medical conditions, accompanied by prescribed lifestyle changes.
Professionals argue that, considering the high risk of weight regain, the treatment might need to be life-long.
This perspective is supported by drug manufacturers, who note that the results "emphasize the persistent nature of obesity," akin to managing diseases like high blood pressure.
User Testimonies
People who have stopped the medication describe a sudden resurgence of appetite.
"I experienced a switch that goes on and I was suddenly ravenous," described one woman.
This challenge is worsened if patients have not developed permanent lifestyle or habit modifications during therapy.
Significant Use
Figures show that millions of people in the UK have tried weight-loss jabs in the past year, with desire remaining high.
- Adoption is greater among women compared to men.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion obtain the drugs through private prescriptions rather than the NHS.
Finally, researchers caution that while these medications are potent agents for shedding pounds, they are not a permanent solution and maintained weight loss relies on combined behavioural management.
