Fresh analysis reveals that people who discontinue new slimming jabs like semaglutide or tirzepatide may regain shed pounds at a significantly accelerated pace than those who stop traditional diet and exercise programs.
Published data in a prominent medical journal shows that while obese people can lose a large proportion of their body weight while using the jabs, the mass comes back at an average rate of 0.8 kg per month once they quit.
"Individuals buying these treatments must be cognizant of the potential of rapid weight regain when the therapy ends," stated researcher Dr. Susan Jebb.
That rate of regain means a reversion to original weight within about one and a half years.
Analyzing Therapies
The analysis, which examined dozens of studies involving over 9,000 of patients, contrasted the results of GLP-1 agonists with other pills.
Researchers emphasize that individuals who lose weight through diet and exercise generally experience a slower creep back—perhaps 100 grams monthly—post-intervention.
The Reason for the Rapid Regain
Nutrition scientists believe the mode of action of the drugs explains the accelerated regain.
GLP-1 drugs copy a natural hormone called GLP-1, which helps regulate feelings of fullness.
"Long-term administration of GLP-1 concentrations several times higher than the body's typical production may cause the system to generate a reduced amount of its endogenous hormone, and may also reduce sensitivity to its effects," said Dr. Adam Collins, a dietetics researcher.
"Withdrawal of this hormone supplement results in hunger is uncontrolled, making excessive eating much more probable."
An Ongoing Condition?
Medical guidelines advise the jabs for people with obesity-related health risks, accompanied by recommended lifestyle changes.
A number of clinicians argue that, due to the high risk of relapse, the treatment might need to be life-long.
This view is echoed by pharmaceutical companies, who note that the results "highlight the long-term nature of excess weight," akin to managing conditions like hypertension.
User Testimonies
People who have discontinued the medication describe a powerful resurgence of hunger.
"It was like a switch flipping and I was suddenly extremely hungry," recalled a patient.
This challenge is compounded if users have not established sustainable lifestyle or habit changes during therapy.
Significant Use
Recent estimates suggest that millions of adults in the UK have tried weight-loss jabs in the past year, with interest remaining high.
- Use is higher among women than males.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion access the medications through private prescriptions rather than the NHS.
Ultimately, researchers caution that while the jabs are potent tools for weight loss, they are not a standalone cure and lasting health benefits hinges on combined lifestyle management.
