New research indicates that people who discontinue blockbuster slimming jabs like semaglutide or tirzepatide can put back on reduced body mass far faster than those who halt conventional lifestyle regimens.
Published data in a leading medical journal shows that while overweight people can lose substantial amounts of their total mass while on the medication, the weight returns at an estimated rate of nearly a kilo each month after stopping.
"Individuals using such drugs should be aware of the danger of rapid weight regain when the treatment is stopped," stated lead investigator Dr. Susan Jebb.
This pace of recovery implies a return to starting mass in about 18 months.
Analyzing Therapies
The research, which examined 37 of studies involving over 9,000 of patients, compared the results of the injectable medications with conventional dieting.
Scientists point out that people who lose weight through lifestyle changes alone usually have a more gradual weight regain—approximately 0.1 kg a month—once they finish.
Explaining the Fast Regain
Nutrition scientists believe the way of the drugs is key to understanding the heightened regain.
These medications imitate a body's own chemical called glucagon-like peptide-1, which controls appetite.
"Artificially providing GLP-1 levels several times higher than normal could lead to the system to produce less of its endogenous hormone, and could reduce responsiveness to its effects," said Dr. Adam Collins, a dietetics researcher.
"Withdrawal of this medication leads to hunger is uncontrolled, making overeating far more likely."
A Lifelong Issue?
Health authorities recommend the injections for people with weight-linked health risks, alongside prescribed lifestyle changes.
Professionals say that, given the high risk of weight regain, the therapy is often ongoing.
This opinion is supported by drug manufacturers, who state that the findings "emphasize the long-term nature of obesity," comparing it to managing diseases like high blood pressure.
Patient Experiences
Individuals who have stopped the jabs describe a powerful return of appetite.
"It was like something activating and I was suddenly extremely hungry," recalled one woman.
This difficulty is worsened if patients have not established sustainable lifestyle or habit changes during treatment.
Growing Adoption
Figures indicate that a significant number of adults in the UK have used these injections in the past year, with desire continuing to grow.
- Use is more common among women compared to males.
- The 40s and 50s demographic shows the greatest level of interest.
- Many obtain the medications through private healthcare rather than the NHS.
Ultimately, clinicians emphasize that while the jabs are powerful agents for weight loss, they are not a magic cure and maintained weight loss relies on integrated lifestyle management.
