Fresh analysis indicates that patients who stop using popular weight-loss injections like semaglutide or tirzepatide tend to recover lost weight much more quickly than those who stop traditional lifestyle regimens.
Findings released in a prominent health publication demonstrates that while obese individuals frequently drop substantial amounts of their body weight while on the medication, the mass comes back at an average rate of nearly a kilo each month once they quit.
"Users purchasing such drugs must be cognizant of the risk of quick rebound weight gain when the therapy concludes," warns researcher Dr. Susan Jebb.
This pace of regain suggests a reversion to pre-treatment weight within about a year and a half.
Analyzing Approaches
The study, which reviewed 37 of studies involving over 9,000 of participants, compared the effects of the injectable medications with conventional dieting.
The team note that individuals who shed pounds through lifestyle changes alone typically experience a slower weight regain—approximately 0.1 kg a month—once they finish.
The Reason for the Quick Regain
Experts believe the mode of action of the jabs explains the accelerated rebound.
GLP-1 drugs copy a body's own chemical called glucagon-like peptide-1, which controls hunger.
"Long-term administration of the hormone concentrations far above than the body's typical production might result in the system to produce less of its endogenous GLP-1, and may also diminish responsiveness to its effects," explained Dr. Adam Collins, a dietetics researcher.
"Discontinuation of this medication results in hunger is uncontrolled, making overeating much more probable."
A Lifelong Issue?
Medical guidelines advise the injections for people with weight-linked medical conditions, accompanied by prescribed diet and exercise modifications.
A number of clinicians argue that, due to the high risk of relapse, the therapy is often life-long.
This opinion is reinforced by drug manufacturers, who say that the results "underscore the long-term nature of obesity," similar to managing conditions like hypertension.
Patient Accounts
Users who have discontinued the medication report a powerful return of hunger.
"It was like a switch that goes on and you're instantly extremely hungry," said a patient.
This challenge is exacerbated if individuals have not adopted permanent dietary or behavioural changes during therapy.
Growing Use
Survey data suggest that a significant number of people in the UK have tried these injections in the last 12 months, with interest being substantial.
- Use is greater among females than males.
- The 40s and 50s age group shows the greatest usage rates.
- Many obtain the medications through private prescriptions rather than the NHS.
Ultimately, researchers stress that while these medications are effective agents for shedding pounds, they are not a standalone fix and lasting health benefits hinges on ongoing lifestyle changes.
