New research reveals that patients who stop using popular GLP-1 drugs like Wegovy and Mounjaro can put back on lost weight far faster than those who halt conventional lifestyle plans.
Published data in a major health publication demonstrates that while overweight individuals often shed substantial amounts of their total mass while using the jabs, the mass comes back at an estimated rate of 0.8 kg per month upon discontinuation.
"Users purchasing these medications should be informed of the risk of fast rebound weight gain when the medication ends," stated expert Dr. Susan Jebb.
That rate of recovery suggests a reversion to original mass in about 18 months.
Comparing Therapies
The research, which examined dozens of studies involving thousands of participants, compared the results of these new drugs with other pills.
The team emphasize that individuals who lose weight through lifestyle changes alone typically have a less rapid weight regain—approximately 0.1 kg a month—after stopping.
Explaining the Fast Rebound
Nutrition scientists believe the way of the jabs explains the heightened weight return.
The injections copy a body's own chemical called glucagon-like peptide-1, which moderates appetite.
"Artificially providing the hormone levels several times higher than normal may cause the system to produce less of its endogenous hormone, and could lessen sensitivity to its actions," said Dr. Adam Collins, a dietetics researcher.
"Discontinuation of this medication leads to appetite is unsuppressed, making binge eating far more likely."
A Chronic Disease?
The NHS recommend the jabs for people with weight-linked medical conditions, accompanied by recommended lifestyle changes.
A number of clinicians contend that, given the high risk of relapse, the treatment is often life-long.
This view is reinforced by drug manufacturers, who say that the results "underscore the persistent nature of excess weight," akin to managing conditions like high blood pressure.
Patient Accounts
People who have come off the medication describe a intense return of cravings.
"It felt as if something flipping and you're instantly extremely hungry," recalled an individual.
The struggle is worsened if patients have not adopted sustainable lifestyle or habit changes during treatment.
Widespread Adoption
Survey data show that a significant number of adults in the UK have used these injections in the past year, with interest being substantial.
- Use is more common among women compared to men.
- The middle-aged age group shows the highest usage rates.
- Many access the drugs through private healthcare rather than the NHS.
Finally, researchers stress that while these medications are powerful agents for weight loss, they are not a permanent solution and long-term success likely depends on integrated lifestyle management.
