Fresh analysis reveals that patients who discontinue popular weight-loss injections like semaglutide or tirzepatide may regain shed pounds far faster than those who stop traditional diet and exercise regimens.
Findings released in a major medical journal shows that while obese people can lose substantial amounts of their body weight while undergoing treatment, the mass returns at an average rate of 0.8 kg per month upon discontinuation.
"People using these drugs should be aware of the potential of rapid weight regain when the treatment is stopped," stated lead investigator Dr. Susan Jebb.
That rate of recovery suggests a reversion to original mass in about a year and a half.
Comparing Treatments
The study, which reviewed 37 of trials involving thousands of participants, contrasted the outcomes of GLP-1 agonists with other pills.
Scientists point out that people who lose weight through dieting usually see a more gradual weight regain—around 0.1 kg a month—post-intervention.
Understanding the Quick Regain
Nutrition scientists believe the way of the injections is key to understanding the heightened rebound.
GLP-1 drugs mimic a body's own chemical called GLP-1, which moderates hunger.
"Long-term administration of GLP-1 concentrations far above than normal could lead to the body to generate a reduced amount of its endogenous hormone, and may also lessen sensitivity to its actions," explained Dr. Adam Collins, a dietetics specialist.
"Stopping of this hormone supplement means appetite is unsuppressed, making binge eating much more probable."
A Chronic Disease?
Health authorities suggest the injections for individuals with obesity-related health risks, alongside prescribed lifestyle changes.
Professionals contend that, considering the likelihood of weight regain, the therapy should be considered long-term.
This perspective is echoed by drug manufacturers, who state that the findings "underscore the long-term character of excess weight," akin to managing conditions like diabetes.
Patient Accounts
People who have come off the jabs report a powerful return of cravings.
"It was like something flipping and I was suddenly extremely hungry," recalled one woman.
The struggle is exacerbated if individuals have not developed lasting dietary or behavioural changes during therapy.
Significant Use
Recent estimates show that a significant number of adults in the UK have tried weight-loss jabs in the last 12 months, with desire being substantial.
- Use is more common among women compared to males.
- The middle-aged age group shows the greatest usage rates.
- A large proportion access the medications through private prescriptions rather than the NHS.
Finally, clinicians stress that while these medications are effective agents for weight loss, they are not a magic cure and long-term success relies on ongoing behavioural management.
