Patients Discontinuing Weight-Loss Injections Put On Pounds at a Quadrupled Rate Compared to People Using Diet and Exercise

New research reveals that patients who stop using blockbuster GLP-1 drugs like semaglutide or tirzepatide tend to recover reduced body mass much more quickly than those who halt conventional diet and exercise plans.

Published data in a major health publication shows that while overweight people frequently drop about a fifth of their total mass while undergoing treatment, the weight comes back at an average rate of nearly a kilo each month upon discontinuation.

"People purchasing these medications should be aware of the danger of quick weight regain when the treatment is stopped," stated expert Dr. Susan Jebb.

Such speed of regain implies a reversion to original weight within about 18 months.

Comparing Approaches

The research, which looked at dozens of studies involving thousands of participants, contrasted the results of the injectable medications with other pills.

Scientists emphasize that individuals who lose weight through dieting generally see a less rapid weight regain—approximately 100 grams monthly—once they finish.

The Reason for the Rapid Regain

Nutrition scientists suggest the mode of action of the jabs is key to understanding the heightened weight return.

GLP-1 drugs copy a natural hormone called GLP-1, which moderates feelings of fullness.

"Artificially providing the hormone levels several times higher than the body's typical production might result in the body to generate a reduced amount of its endogenous hormone, and could reduce sensitivity to its actions," noted Dr. Adam Collins, a dietetics researcher.

"Withdrawal of this medication means hunger is unsuppressed, making overeating much more probable."

An Ongoing Condition?

Health authorities suggest the jabs for people with weight-linked health risks, alongside prescribed lifestyle changes.

Professionals say that, due to the significant potential of relapse, the treatment is often ongoing.

This view is supported by pharmaceutical companies, who say that the results "emphasize the long-term character of excess weight," comparing it to managing conditions like hypertension.

Patient Testimonies

Users who have discontinued the medication report a powerful resurgence of appetite.

"It was like a switch that goes on and you become ravenous," described one woman.

This challenge is compounded if patients have not adopted lasting dietary or behavioural changes during treatment.

Significant Interest

Figures indicate that a significant number of adults in the UK have tried weight-loss jabs in the past year, with demand being substantial.

• Use is more common among women compared to males.
• The 40s and 50s age group shows the highest level of interest.
• A large proportion access the drugs through private prescriptions rather than public health services.

Finally, researchers caution that while these medications are effective tools for weight loss, they are not a standalone cure and lasting health benefits relies on ongoing behavioural support.