Users Discontinuing Slimming Injections Regain Pounds Four Times Faster Than Dieters

Fresh analysis suggests that patients who come off new GLP-1 drugs like semaglutide or tirzepatide can put back on shed pounds at a significantly accelerated pace than those who stop traditional diet and exercise regimens.

Research printed in a major medical journal demonstrates that while overweight people often shed substantial amounts of their total mass while on the medication, the mass returns at an estimated rate of nearly a kilo each month after stopping.

"Individuals using such drugs need to be cognizant of the potential of quick rebound weight gain when the therapy concludes," cautioned expert Dr. Susan Jebb.

Such speed of recovery means a reversion to pre-treatment mass in about 18 months.

Comparing Treatments

The study, which reviewed dozens of trials involving over 9,000 of participants, contrasted the effects of these new drugs with older methods.

The team note that individuals who shed pounds through dieting usually experience a slower creep back—around 100 grams monthly—post-intervention.

Explaining the Fast Rebound

Doctors suggest the mechanism of the injections explains the amplified regain.

These medications copy a body's own chemical called glucagon-like peptide-1, which moderates appetite.

"Artificially providing GLP-1 concentrations far above than normal might result in the system to generate a reduced amount of its endogenous GLP-1, and could diminish sensitivity to its actions," said Dr. Adam Collins, a nutrition specialist.

"Withdrawal of this GLP-1 'fix' means appetite is no longer kept in check, making excessive eating far more likely."

An Ongoing Disease?

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

A number of clinicians argue that, due to the high risk of relapse, the therapy is often ongoing.

This view is reinforced by drug manufacturers, who state that the findings "highlight the persistent nature of obesity," similar to managing conditions like high blood pressure.

Patient Experiences

Individuals who have stopped the medication report a sudden resurgence of appetite.

"I experienced something that goes on and you're instantly starving," said an individual.

This challenge is exacerbated if patients have not developed permanent dietary or behavioural modifications during therapy.

Significant Use

Recent estimates show that millions of people in the UK have used these injections in the past year, with demand continuing to grow.

• Use is more common among women compared to males.
• The 40s and 50s demographic shows the greatest usage rates.
• A large proportion access the drugs through private prescriptions rather than the NHS.

Ultimately, researchers stress that while the jabs are effective agents for weight loss, they are not a permanent fix and long-term success relies on ongoing behavioural management.