A recent study indicates that people who stop using new weight-loss injections like semaglutide or tirzepatide may regain reduced body mass much more quickly than those who end traditional lifestyle regimens.
Findings released in a major medical journal shows that while overweight people can lose about a fifth of their total mass while using the jabs, the mass is regained at an estimated rate of 0.8 kg per month after stopping.
"People purchasing such drugs should be cognizant of the potential of rapid weight regain when the medication concludes," stated researcher Dr. Susan Jebb.
This pace of regain suggests a reversion to pre-treatment mass in about one and a half years.
Weighing Approaches
The research, which looked at 37 of trials involving over 9,000 of participants, compared the results of these new drugs with other pills.
Scientists note that people who lose weight through lifestyle changes alone typically experience a slower weight regain—approximately 100 grams monthly—after stopping.
Understanding the Fast Rebound
Nutrition scientists propose the mode of action of the drugs is key to understanding the amplified weight return.
The injections imitate a body's own chemical called glucagon-like peptide-1, which controls appetite.
"Long-term administration of GLP-1 concentrations far above than the body's typical production might result in the body to generate a reduced amount of its endogenous hormone, and may also diminish responsiveness to its actions," noted Dr. Adam Collins, a nutrition specialist.
"Withdrawal of this hormone supplement results in hunger is no longer kept in check, making excessive eating much more probable."
A Lifelong Disease?
Health authorities suggest the jabs for individuals with obesity-related medical conditions, accompanied by prescribed lifestyle changes.
Professionals say that, considering the likelihood of relapse, the therapy might need to be life-long.
This perspective is echoed by drug manufacturers, who state that the findings "highlight the chronic character of obesity," akin to managing conditions like diabetes.
Patient Testimonies
People who have come off the jabs explain a intense resurgence of cravings.
"I experienced a trigger flipping and I was suddenly extremely hungry," said a patient.
This challenge is worsened if users have not adopted sustainable lifestyle or habit modifications during therapy.
Growing Adoption
Recent estimates suggest that a significant number of adults in the UK have tried these injections in the past year, with desire remaining high.
- Adoption is greater among women compared to males.
- The middle-aged age group shows the greatest level of interest.
- A large proportion obtain the drugs through private prescriptions rather than public health services.
Finally, experts caution that while GLP-1 drugs are effective agents for shedding pounds, they are not a standalone fix and lasting health benefits hinges on ongoing behavioural changes.
