Fresh analysis reveals that individuals who discontinue blockbuster GLP-1 drugs like semaglutide or tirzepatide may regain shed pounds much more quickly than those who end conventional diet and exercise programs.
Published data in a leading health publication shows that while obese individuals can lose about a fifth of their total mass while on the medication, the weight returns at an average rate of 0.8 kg per month after stopping.
"Users purchasing these medications need to be cognizant of the risk of fast weight regain when the treatment concludes," cautioned researcher Dr. Susan Jebb.
Such speed of recovery implies a reversion to original weight within about one and a half years.
Weighing Approaches
The research, which reviewed 37 of trials involving thousands of patients, contrasted the effects of the injectable medications with conventional dieting.
Scientists emphasize that individuals who lose weight through diet and exercise typically experience a less rapid weight regain—around 100 grams monthly—post-intervention.
The Reason for the Quick Rebound
Nutrition scientists propose the mechanism of the jabs explains the amplified regain.
The injections mimic a natural hormone called GLP-1, which controls feelings of fullness.
"Sustained high doses of GLP-1 concentrations far above than the body's typical production could lead to the system to produce less of its own natural hormone, and may also diminish sensitivity to its effects," said Dr. Adam Collins, a dietetics specialist.
"Withdrawal of this hormone supplement means hunger is unsuppressed, making overeating much more probable."
A Chronic Disease?
Medical guidelines advise the jabs for people with obesity-related medical conditions, alongside prescribed lifestyle changes.
Professionals argue that, considering the high risk of weight regain, the treatment should be considered ongoing.
This perspective is supported by drug manufacturers, who note that the results "emphasize the chronic character of excess weight," akin to managing diseases like diabetes.
Patient Accounts
People who have discontinued the medication report a sudden resurgence of appetite.
"It was like a trigger activating and you're instantly ravenous," described an individual.
This challenge is worsened if users have not established lasting dietary or behavioural changes during treatment.
Significant Adoption
Figures show that millions of people in the UK have tried weight-loss jabs in the past year, with desire continuing to grow.
- Adoption is greater among females compared to males.
- The 40s and 50s age group shows the greatest usage rates.
- A large proportion access the medications through private prescriptions rather than the NHS.
In conclusion, clinicians emphasize that while GLP-1 drugs are powerful agents for shedding pounds, they are not a permanent solution and maintained weight loss hinges on integrated lifestyle support.
