Fresh analysis indicates that patients who stop using blockbuster GLP-1 drugs like semaglutide or tirzepatide tend to recover reduced body mass at a significantly accelerated pace than those who stop conventional diet and exercise plans.
Findings released in a prominent medical journal shows that while obese individuals frequently drop substantial amounts of their total mass while using the jabs, the mass is regained at an estimated rate of nearly a kilo each month upon discontinuation.
"Users buying these drugs need to be informed of the potential of fast rebound weight gain when the medication is stopped," warns lead investigator Dr. Susan Jebb.
This pace of regain implies a return to original weight in about one and a half years.
Analyzing Therapies
The analysis, which examined 37 of trials involving over 9,000 of participants, contrasted the results of these new drugs with other pills.
Scientists note that people who shed pounds through lifestyle changes alone generally see a less rapid weight regain—approximately 0.1 kg a month—once they finish.
Understanding the Fast Regain
Nutrition scientists believe the mechanism of the injections accounts for the accelerated regain.
These medications mimic a body's own chemical called glucagon-like peptide-1, which helps regulate hunger.
"Artificially providing the hormone concentrations far above than normal might result in the system to generate a reduced amount of its own natural GLP-1, and could diminish responsiveness to its actions," said Dr. Adam Collins, a dietetics expert.
"Stopping of this medication leads to hunger is uncontrolled, making excessive eating far more likely."
A Chronic Disease?
Medical guidelines recommend the injections for individuals with weight-linked medical conditions, accompanied by recommended lifestyle changes.
Many experts contend that, given the likelihood of relapse, the therapy is often life-long.
This opinion is supported by drug manufacturers, who say that the results "emphasize the persistent character of excess weight," akin to managing diseases like diabetes.
Patient Experiences
Users who have stopped the medication explain a sudden resurgence of cravings.
"It was like something that goes on and you're instantly starving," recalled a patient.
The struggle is worsened if individuals have not adopted permanent dietary or behavioural modifications during therapy.
Significant Use
Recent estimates suggest that millions of adults in the UK have tried weight-loss jabs in the past year, with demand continuing to grow.
- Use is greater among females compared to males.
- The middle-aged age group shows the greatest usage rates.
- Many access the medications through private prescriptions rather than public health services.
Ultimately, clinicians stress that while these medications are effective tools for shedding pounds, they are not a permanent cure and long-term success likely depends on integrated lifestyle changes.
