A recent study indicates that patients who come off blockbuster GLP-1 drugs like semaglutide or tirzepatide tend to recover reduced body mass at a significantly accelerated pace than those who end traditional lifestyle programs.
Research printed in a prominent health publication shows that while obese people frequently drop a large proportion of their total mass while undergoing treatment, the mass is regained at an average rate of 0.8 kg per month once they quit.
"Users buying these medications must be cognizant of the risk of rapid weight regain when the therapy is stopped," warns researcher Dr. Susan Jebb.
This pace of recovery implies a reversion to pre-treatment mass within about a year and a half.
Analyzing Approaches
The research, which looked at dozens of studies involving thousands of participants, compared the effects of the injectable medications with conventional dieting.
Researchers point out that people who lose weight through dieting usually have a slower weight regain—perhaps 100 grams monthly—post-intervention.
Explaining the Rapid Rebound
Experts believe the mode of action of the jabs explains the accelerated rebound.
GLP-1 drugs imitate a body's own chemical called glucagon-like peptide-1, which moderates hunger.
"Sustained high doses of the hormone concentrations several times higher than the body's typical production may cause the body to produce less of its own natural GLP-1, and could reduce sensitivity to its actions," noted Dr. Adam Collins, a dietetics expert.
"Withdrawal of this medication means appetite is no longer kept in check, making excessive eating a significant risk."
A Chronic Disease?
Health authorities recommend the injections for people with weight-linked medical conditions, accompanied by recommended diet and exercise modifications.
A number of clinicians argue that, due to the likelihood of relapse, the treatment is often ongoing.
This perspective is reinforced by drug manufacturers, who note that the results "highlight the chronic character of obesity," akin to managing conditions like high blood pressure.
User Accounts
Individuals who have stopped the jabs explain a powerful return of appetite.
"It felt as if something activating and you're instantly starving," recalled a patient.
This challenge is worsened if individuals have not adopted lasting dietary or behavioural changes during treatment.
Widespread Use
Survey data indicate that millions of adults in the UK have used weight-loss jabs in the past year, with demand remaining high.
- Use is higher among women compared to men.
- The middle-aged age group shows the highest usage rates.
- Many access the drugs through private healthcare rather than public health services.
Finally, researchers stress that while these medications are potent agents for weight loss, they are not a magic fix and maintained weight loss relies on ongoing behavioural support.
