A recent study suggests that individuals who discontinue blockbuster GLP-1 drugs like Mounjaro or Wegovy tend to recover lost weight far faster than those who halt conventional lifestyle plans.
Published data in a prominent medical journal shows that while obese people can lose about a fifth of their body weight while undergoing treatment, the weight returns at an estimated rate of 0.8 kg per month once they quit.
"Users purchasing these treatments need to be cognizant of the risk of rapid weight regain when the medication ends," warns lead investigator Dr. Susan Jebb.
That rate of recovery suggests a reversion to starting weight in about a year and a half.
Weighing Treatments
The study, which looked at dozens of trials involving thousands of patients, compared the outcomes of these new drugs with other pills.
The team note that people who lose weight through diet and exercise usually see a slower creep back—perhaps 0.1 kg a month—post-intervention.
Explaining the Rapid Rebound
Nutrition scientists propose the mode of action of the injections accounts for the accelerated rebound.
The injections imitate a body's own chemical called glucagon-like peptide-1, which moderates feelings of fullness.
"Sustained high doses of the hormone levels several times higher than the body's typical production may cause the body to generate a reduced amount of its endogenous hormone, and could reduce responsiveness to its actions," noted Dr. Adam Collins, a dietetics specialist.
"Stopping of this hormone supplement means appetite is unsuppressed, making excessive eating much more probable."
An Ongoing Issue?
Health authorities recommend the jabs for individuals with obesity-related medical conditions, accompanied by prescribed lifestyle changes.
A number of clinicians contend that, due to the likelihood of relapse, the therapy might need to be long-term.
This view is supported by pharmaceutical companies, who note that the findings "emphasize the persistent nature of obesity," comparing it to managing diseases like diabetes.
User Testimonies
People who have discontinued the jabs explain a intense resurgence of hunger.
"I experienced something that goes on and you're instantly ravenous," said a patient.
The struggle is worsened if users have not established permanent dietary or behavioural modifications during treatment.
Growing Interest
Figures show that a significant number of people in the UK have tried weight-loss jabs in the last 12 months, with desire continuing to grow.
- Adoption is higher among females compared to males.
- The 40s and 50s age group shows the greatest usage rates.
- Many obtain the drugs through private prescriptions rather than the NHS.
Ultimately, researchers stress that while these medications are potent tools for shedding pounds, they are not a magic solution and lasting health benefits hinges on combined lifestyle support.
