Fresh analysis suggests that individuals who stop using popular GLP-1 drugs like semaglutide or tirzepatide may regain shed pounds at a significantly accelerated pace than those who end traditional lifestyle programs.
Published data in a prominent health publication shows that while overweight individuals frequently drop substantial amounts of their body weight while undergoing treatment, the weight is regained at an estimated rate of nearly a kilo each month once they quit.
"People buying these treatments should be aware of the danger of quick weight regain when the medication is stopped," cautioned researcher Dr. Susan Jebb.
Such speed of regain implies a reversion to pre-treatment mass in about one and a half years.
Comparing Treatments
The analysis, which examined dozens of trials involving over 9,000 of participants, compared the results of the injectable medications with other pills.
Scientists emphasize that people who shed pounds through diet and exercise generally have a more gradual weight regain—around 100 grams monthly—once they finish.
The Reason for the Quick Regain
Doctors suggest the mechanism of the drugs accounts for the heightened regain.
These medications imitate a body's own chemical called GLP-1, which moderates appetite.
"Sustained high doses of the hormone levels several times higher than the body's typical production might result in the system to generate a reduced amount of its own natural hormone, and could lessen sensitivity to its actions," said Dr. Adam Collins, a dietetics specialist.
"Discontinuation of this medication results in hunger is uncontrolled, making overeating much more probable."
A Lifelong Condition?
The NHS recommend the jabs for individuals with obesity-related medical conditions, alongside recommended diet and exercise modifications.
Many experts say that, due to the high risk of relapse, the therapy might need to be life-long.
This view is supported by drug manufacturers, who state that the findings "highlight the persistent nature of obesity," akin to managing conditions like hypertension.
Patient Experiences
Individuals who have come off the medication describe a powerful return of hunger.
"It was like a switch activating and you're instantly extremely hungry," described a patient.
This difficulty is compounded if individuals have not developed lasting dietary or behavioural modifications during treatment.
Widespread Adoption
Survey data show that millions of people in the UK have used these injections in the past year, with desire being substantial.
- Use is greater among women compared to males.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion obtain the drugs through private healthcare rather than the NHS.
Ultimately, researchers stress that while these medications are powerful agents for weight loss, they are not a magic solution and maintained weight loss relies on ongoing lifestyle management.
