A recent study suggests that people who come off popular weight-loss injections like semaglutide or tirzepatide can put back on reduced body mass far faster than those who end conventional lifestyle plans.
Published data in a prominent medical journal demonstrates that while overweight individuals can lose a large proportion of their body weight while using the jabs, the weight returns at an average rate of nearly a kilo each month upon discontinuation.
"Individuals using these drugs must be informed of the risk of quick rebound weight gain when the medication is stopped," stated researcher Dr. Susan Jebb.
That rate of regain suggests a return to starting weight in about a year and a half.
Weighing Approaches
The study, which reviewed dozens of studies involving thousands of participants, contrasted the effects of these new drugs with older methods.
Researchers note that individuals who shed pounds through lifestyle changes alone typically experience a slower weight regain—perhaps 0.1 kg a month—after stopping.
Explaining the Fast Regain
Doctors believe the mechanism of the drugs explains the heightened regain.
The injections mimic a body's own chemical called glucagon-like peptide-1, which helps regulate feelings of fullness.
"Sustained high doses of the hormone concentrations far above than normal could lead to the system to produce less of its own natural hormone, and could diminish responsiveness to its actions," said Dr. Adam Collins, a nutrition researcher.
"Stopping of this GLP-1 'fix' results in appetite is uncontrolled, making excessive eating a significant risk."
A Chronic Disease?
Medical guidelines advise the jabs for individuals with obesity-related medical conditions, alongside prescribed lifestyle changes.
Professionals argue that, due to the significant potential of weight regain, the treatment should be considered long-term.
This opinion is echoed by drug manufacturers, who say that the findings "emphasize the persistent nature of excess weight," similar to managing conditions like high blood pressure.
Patient Testimonies
Individuals who have come off the medication report a powerful return of hunger.
"It was like a trigger activating and I was suddenly ravenous," recalled a patient.
This difficulty is worsened if individuals have not established lasting lifestyle or habit changes during treatment.
Significant Adoption
Figures indicate that a significant number of adults in the UK have used these injections in the last 12 months, with demand continuing to grow.
- Use is greater among women than males.
- The 40s and 50s age group shows the highest usage rates.
- Many access the medications through private prescriptions rather than public health services.
Finally, clinicians caution that while these medications are powerful agents for weight loss, they are not a permanent cure and lasting health benefits relies on ongoing behavioural management.
