New research indicates that people who come off blockbuster slimming jabs like semaglutide or tirzepatide tend to recover reduced body mass much more quickly than those who end conventional diet and exercise programs.
Published data in a prominent health publication demonstrates that while obese individuals frequently drop about a fifth of their total mass while undergoing treatment, the mass is regained at an average rate of 0.8 kg per month once they quit.
"Individuals buying such treatments must be informed of the potential of quick rebound weight gain when the therapy concludes," warns lead investigator Dr. Susan Jebb.
Such speed of regain means a reversion to pre-treatment weight in about 18 months.
Weighing Treatments
The analysis, which looked at 37 of studies involving thousands of participants, compared the results of the injectable medications with conventional dieting.
Researchers emphasize that individuals who lose weight through diet and exercise usually experience a less rapid weight regain—perhaps 0.1 kg a month—post-intervention.
Explaining the Quick Regain
Nutrition scientists suggest the way of the injections is key to understanding the heightened rebound.
These medications imitate a body's own chemical called GLP-1, which moderates feelings of fullness.
"Artificially providing the hormone concentrations several times higher than normal might result in the system to generate a reduced amount of its endogenous GLP-1, and could reduce responsiveness to its actions," explained Dr. Adam Collins, a dietetics expert.
"Withdrawal of this hormone supplement leads to appetite is uncontrolled, making overeating far more likely."
An Ongoing Issue?
Medical guidelines recommend the injections for people with weight-linked health risks, alongside prescribed lifestyle changes.
Many experts contend that, due to the significant potential of relapse, the treatment might need to be long-term.
This view is reinforced by drug manufacturers, who state that the findings "underscore the persistent character of obesity," similar to managing diseases like hypertension.
User Testimonies
People who have come off the medication describe a powerful resurgence of hunger.
"It felt as if a trigger flipping and you become ravenous," recalled one woman.
The struggle is exacerbated if individuals have not developed sustainable lifestyle or habit changes during treatment.
Significant Interest
Figures suggest that millions of adults in the UK have used these injections in the last 12 months, with demand continuing to grow.
- Adoption is greater among women than men.
- The 40s and 50s age group shows the greatest usage rates.
- Many obtain the drugs through private prescriptions rather than the NHS.
Ultimately, clinicians emphasize that while these medications are effective tools for shedding pounds, they are not a standalone solution and long-term success relies on integrated behavioural management.
