Fresh analysis suggests that patients who stop using popular slimming jabs like semaglutide or tirzepatide can put back on shed pounds much more quickly than those who end conventional lifestyle regimens.
Research printed in a leading medical journal demonstrates that while overweight individuals frequently drop substantial amounts of their body weight while undergoing treatment, the mass comes back at an average rate of 0.8 kg per month upon discontinuation.
"Users purchasing such medications need to be informed of the potential of fast weight regain when the therapy concludes," warns lead investigator Dr. Susan Jebb.
Such speed of recovery implies a return to pre-treatment mass within about 18 months.
Comparing Approaches
The study, which reviewed dozens of studies involving thousands of patients, compared the results of GLP-1 agonists with older methods.
Researchers note that people who shed pounds through lifestyle changes alone typically have a less rapid weight regain—approximately 100 grams monthly—post-intervention.
Explaining the Rapid Regain
Nutrition scientists suggest the mechanism of the injections is key to understanding the heightened regain.
GLP-1 drugs imitate a body's own chemical called glucagon-like peptide-1, which moderates hunger.
"Sustained high doses of the hormone levels several times higher than the body's typical production could lead to the system to generate a reduced amount of its endogenous hormone, and could lessen sensitivity to its actions," said Dr. Adam Collins, a dietetics expert.
"Withdrawal of this hormone supplement leads to hunger is unsuppressed, making excessive eating much more probable."
An Ongoing Issue?
Health authorities advise the jabs for people with weight-linked health risks, accompanied by prescribed diet and exercise modifications.
Many experts argue that, considering the likelihood of relapse, the therapy might need to be long-term.
This opinion is reinforced by drug manufacturers, who note that the results "underscore the persistent character of excess weight," similar to managing conditions like hypertension.
Patient Testimonies
Users who have discontinued the medication explain a sudden resurgence of cravings.
"I experienced something flipping and I was suddenly extremely hungry," said one woman.
The struggle is compounded if individuals have not adopted sustainable dietary or behavioural modifications during treatment.
Growing Use
Recent estimates show that millions of people in the UK have tried weight-loss jabs in the last 12 months, with desire continuing to grow.
- Adoption is more common among women compared to men.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion obtain the medications through private prescriptions rather than the NHS.
Ultimately, clinicians emphasize that while these medications are effective agents for shedding pounds, they are not a standalone cure and long-term success relies on ongoing behavioural management.
