Users Coming Off Slimming Injections Gain Back Weight at a Quadrupled Rate Compared to People Using Diet and Exercise

New research indicates that people who come off blockbuster GLP-1 drugs like semaglutide or tirzepatide tend to recover lost weight at a significantly accelerated pace than those who end traditional diet and exercise plans.

Research printed in a prominent health publication demonstrates that while overweight individuals can lose a large proportion of their total mass while using the jabs, the mass returns at an average rate of 0.8 kg per month after stopping.

"People using such medications should be cognizant of the risk of rapid rebound weight gain when the therapy is stopped," stated researcher Dr. Susan Jebb.

This pace of regain suggests a return to pre-treatment mass within about a year and a half.

Weighing Treatments

The study, which looked at dozens of trials involving thousands of participants, compared the outcomes of these new drugs with conventional dieting.

Scientists point out that individuals who lose weight through lifestyle changes alone usually have a more gradual creep back—perhaps 100 grams monthly—post-intervention.

Explaining the Rapid Rebound

Experts believe the mode of action of the injections is key to understanding the accelerated rebound.

The injections imitate a body's own chemical called glucagon-like peptide-1, which moderates feelings of fullness.

"Long-term administration 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 may also diminish sensitivity to its actions," said Dr. Adam Collins, a nutrition expert.

"Withdrawal of this medication results in hunger is uncontrolled, making excessive eating far more likely."

A Chronic Disease?

The NHS recommend the injections for individuals with obesity-related medical conditions, alongside recommended diet and exercise modifications.

A number of clinicians contend that, given the significant potential of weight regain, the treatment is often life-long.

This opinion is reinforced by drug manufacturers, who note that the results "highlight the chronic nature of excess weight," akin to managing conditions like diabetes.

Patient Testimonies

Individuals who have stopped the jabs explain a powerful resurgence of appetite.

"It felt as if a switch that goes on and I was suddenly extremely hungry," said one woman.

The struggle is worsened if users have not established sustainable dietary or behavioural changes during therapy.

Growing Use

Survey data indicate that millions of adults in the UK have tried these injections in the last 12 months, with desire continuing to grow.

• Use is more common among women than men.
• The 40s and 50s demographic shows the greatest level of interest.
• Many access the medications through private prescriptions rather than public health services.

In conclusion, researchers caution that while these medications are effective tools for shedding pounds, they are not a magic fix and maintained weight loss relies on combined behavioural management.