A recent study indicates that individuals who stop using blockbuster GLP-1 drugs like semaglutide or tirzepatide may regain lost weight at a significantly accelerated pace than those who stop conventional lifestyle regimens.
Research printed in a major health publication points out that while obese individuals frequently drop substantial amounts of their body weight while on the medication, the weight comes back at an average rate of 0.8 kg per month upon discontinuation.
"People using such treatments must be cognizant of the risk of rapid weight regain when the medication is stopped," stated researcher Dr. Susan Jebb.
This pace of regain suggests a reversion to pre-treatment weight within about 18 months.
Analyzing Treatments
The study, which looked at 37 of studies involving thousands of participants, compared the outcomes of GLP-1 agonists with other pills.
The team note that people who shed pounds through lifestyle changes alone usually see a slower creep back—perhaps 100 grams monthly—post-intervention.
Explaining the Quick Regain
Nutrition scientists believe the way of the drugs explains the accelerated weight return.
GLP-1 drugs imitate a body's own chemical called glucagon-like peptide-1, which controls hunger.
"Long-term administration of GLP-1 concentrations far above than the body's typical production may cause the body to generate a reduced amount of its endogenous GLP-1, and may also lessen sensitivity to its actions," said Dr. Adam Collins, a dietetics specialist.
"Discontinuation of this GLP-1 'fix' results in hunger is uncontrolled, making binge eating a significant risk."
An Ongoing Disease?
Medical guidelines recommend the injections for individuals with weight-linked medical conditions, accompanied by prescribed lifestyle changes.
A number of clinicians argue that, due to the significant potential of relapse, the treatment is often long-term.
This opinion is supported by pharmaceutical companies, who note that the findings "underscore the long-term character of excess weight," comparing it to managing conditions like hypertension.
User Accounts
Users who have stopped the jabs explain a sudden return of appetite.
"It was like something that goes on and I was suddenly extremely hungry," described an individual.
The struggle is worsened if patients have not adopted permanent lifestyle or habit changes during therapy.
Significant Adoption
Figures indicate that millions of adults in the UK have used these injections in the last 12 months, with desire being substantial.
- Use is greater among women than men.
- The 40s and 50s age group shows the greatest usage rates.
- Many obtain the drugs through private healthcare rather than the NHS.
Ultimately, experts emphasize that while the jabs are powerful tools for shedding pounds, they are not a standalone fix and lasting health benefits relies on combined behavioural support.
