New research indicates that individuals who stop using blockbuster GLP-1 drugs like semaglutide or tirzepatide may regain lost weight much more quickly than those who end traditional lifestyle programs.
Research printed in a leading health publication points out that while overweight people frequently drop substantial amounts of their total mass while on the medication, the mass is regained at an estimated rate of nearly a kilo each month once they quit.
"People buying such medications must be aware of the potential of rapid weight regain when the therapy is stopped," cautioned expert Dr. Susan Jebb.
Such speed of recovery means a reversion to original mass within about a year and a half.
Comparing Approaches
The study, which reviewed dozens of studies involving thousands of participants, contrasted the results of GLP-1 agonists with older methods.
The team emphasize that individuals who shed pounds through lifestyle changes alone generally have a slower weight regain—perhaps 0.1 kg a month—after stopping.
Understanding the Rapid Regain
Doctors believe the mode of action of the jabs is key to understanding the heightened regain.
These medications mimic a body's own chemical called GLP-1, which controls appetite.
"Artificially providing GLP-1 levels several times higher than the body's typical production might result in the system to produce less of its endogenous GLP-1, and could diminish sensitivity to its effects," explained Dr. Adam Collins, a nutrition specialist.
"Withdrawal of this hormone supplement results in appetite is uncontrolled, making excessive eating far more likely."
An Ongoing Issue?
Health authorities recommend the jabs for individuals with weight-linked health risks, accompanied by recommended lifestyle changes.
A number of clinicians argue that, given the likelihood of weight regain, the therapy should be considered life-long.
This opinion is echoed by drug manufacturers, who say that the findings "underscore the long-term character of excess weight," akin to managing conditions like diabetes.
Patient Testimonies
People who have discontinued the jabs explain a powerful resurgence of appetite.
"It was like a switch that goes on and I was suddenly extremely hungry," recalled an individual.
This difficulty is worsened if users have not established permanent dietary or behavioural changes during treatment.
Growing Use
Survey data show that millions of adults in the UK have used these injections in the past year, with interest continuing to grow.
- Adoption is greater among females compared to males.
- The middle-aged age group shows the highest usage rates.
- A large proportion access the drugs through private prescriptions rather than the NHS.
In conclusion, experts stress that while these medications are powerful agents for weight loss, they are not a standalone cure and lasting health benefits likely depends on combined lifestyle management.
