A recent study suggests that patients who discontinue popular weight-loss injections like semaglutide or tirzepatide may regain reduced body mass much more quickly than those who stop traditional lifestyle programs.
Published data in a prominent health publication points out that while obese individuals can lose substantial amounts of their body weight while on the medication, the weight comes back at an estimated rate of 0.8 kg per month upon discontinuation.
"Individuals buying such treatments should be informed of the potential of rapid weight regain when the treatment concludes," warns lead investigator Dr. Susan Jebb.
That rate of recovery means a reversion to starting mass within about a year and a half.
Comparing Therapies
The study, which examined 37 of studies involving over 9,000 of participants, contrasted the effects of the injectable medications with older methods.
The team emphasize that people who lose weight through diet and exercise generally experience a less rapid creep back—perhaps 100 grams monthly—post-intervention.
Explaining the Fast Regain
Doctors propose the mode of action of the injections explains the accelerated weight return.
GLP-1 drugs copy a natural hormone called glucagon-like peptide-1, which moderates appetite.
"Artificially providing GLP-1 concentrations far above than the body's typical production might result in the system to produce less of its own natural hormone, and may also lessen sensitivity to its effects," noted Dr. Adam Collins, a nutrition specialist.
"Stopping of this medication results in appetite is unsuppressed, making binge eating far more likely."
A Chronic Disease?
Medical guidelines suggest the injections for people with obesity-related medical conditions, accompanied by prescribed diet and exercise modifications.
Professionals contend that, given the likelihood of weight regain, the therapy should be considered life-long.
This view is supported by drug manufacturers, who state that the results "highlight the chronic character of excess weight," comparing it to managing conditions like high blood pressure.
Patient Accounts
People who have discontinued the medication explain a sudden return of hunger.
"I experienced a trigger that goes on and you're instantly starving," said a patient.
This difficulty is worsened if individuals have not established sustainable lifestyle or habit changes during treatment.
Widespread Use
Survey data show that a significant number of adults in the UK have used weight-loss jabs in the past year, with interest being substantial.
- Adoption is higher among females than men.
- The 40s and 50s demographic shows the highest level of interest.
- A large proportion access the medications through private prescriptions rather than public health services.
In conclusion, clinicians caution that while these medications are effective agents for weight loss, they are not a standalone fix and lasting health benefits likely depends on combined behavioural support.
