New research reveals that people who discontinue new weight-loss injections like semaglutide or tirzepatide tend to recover shed pounds at a significantly accelerated pace than those who halt conventional lifestyle plans.
Research printed in a leading health publication shows that while obese people can lose a large proportion of their total mass while on the medication, the weight is regained at an estimated rate of nearly a kilo each month upon discontinuation.
"People buying such treatments must be cognizant of the danger of quick weight regain when the therapy is stopped," cautioned lead investigator Dr. Susan Jebb.
That rate of regain suggests a reversion to starting weight within about one and a half years.
Analyzing Therapies
The analysis, which reviewed 37 of studies involving thousands of participants, contrasted the results of GLP-1 agonists with conventional dieting.
Researchers emphasize that people who lose weight through dieting generally experience a slower creep back—around 0.1 kg a month—once they finish.
Explaining the Quick Regain
Experts believe the mode of action of the drugs accounts for the accelerated regain.
GLP-1 drugs copy a body's own chemical called GLP-1, which moderates appetite.
"Artificially providing the hormone levels far above than the body's typical production might result in the system to generate a reduced amount of its endogenous GLP-1, and may also diminish responsiveness to its effects," said Dr. Adam Collins, a nutrition expert.
"Stopping of this hormone supplement leads to hunger is uncontrolled, making binge eating much more probable."
A Lifelong Condition?
Medical guidelines recommend the injections for people with weight-linked health risks, alongside prescribed lifestyle changes.
Many experts say that, due to the significant potential of relapse, the treatment is often long-term.
This view is echoed by pharmaceutical companies, who note that the findings "emphasize the long-term character of excess weight," comparing it to managing diseases like diabetes.
User Experiences
People who have stopped the medication describe a sudden resurgence of cravings.
"It felt as if a switch flipping and you become starving," said a patient.
This challenge is worsened if users have not adopted permanent dietary or behavioural modifications during therapy.
Significant Adoption
Recent estimates show that a significant number of people in the UK have used these injections in the past year, with demand remaining high.
- Adoption is higher among females compared to men.
- The middle-aged demographic shows the greatest usage rates.
- A large proportion obtain the drugs through private prescriptions rather than the NHS.
Ultimately, experts emphasize that while the jabs are effective agents for weight loss, they are not a magic solution and lasting health benefits likely depends on integrated lifestyle changes.
