New research suggests that people who come off popular weight-loss injections like semaglutide or tirzepatide tend to recover lost weight much more quickly than those who halt traditional diet and exercise programs.
Findings released in a major health publication shows that while overweight people can lose about a fifth of their total mass while undergoing treatment, the weight comes back at an average rate of nearly a kilo each month after stopping.
"Individuals purchasing such drugs must be cognizant of the risk of fast weight regain when the therapy is stopped," warns researcher Dr. Susan Jebb.
That rate of recovery implies a reversion to original weight in about one and a half years.
Weighing Treatments
The study, which examined 37 of studies involving over 9,000 of participants, contrasted the effects of the injectable medications with conventional dieting.
Scientists point out that individuals who shed pounds through lifestyle changes alone generally see a slower creep back—perhaps 0.1 kg a month—after stopping.
The Reason for the Rapid Rebound
Experts propose the mode of action of the injections accounts for the accelerated weight return.
GLP-1 drugs mimic a body's own chemical called glucagon-like peptide-1, which controls appetite.
"Long-term administration of the hormone levels several times higher than the body's typical production may cause the system to generate a reduced amount of its endogenous hormone, and may also lessen sensitivity to its effects," explained Dr. Adam Collins, a nutrition expert.
"Stopping of this medication results in appetite is no longer kept in check, making binge eating a significant risk."
A Lifelong Condition?
Health authorities suggest the injections for people with weight-linked health risks, accompanied by prescribed diet and exercise modifications.
Many experts contend that, considering the likelihood of weight regain, the treatment might need to be ongoing.
This view is echoed by pharmaceutical companies, who note that the findings "emphasize the persistent character of excess weight," comparing it to managing diseases like high blood pressure.
User Testimonies
Individuals who have stopped the medication explain a intense return of appetite.
"It felt as if a switch flipping and you're instantly extremely hungry," recalled an individual.
The struggle is exacerbated if patients have not adopted sustainable dietary or behavioural changes during treatment.
Significant Adoption
Survey data indicate that a significant number of adults in the UK have used these injections in the past year, with interest being substantial.
- Adoption is higher among females compared to males.
- The 40s and 50s demographic shows the greatest level of interest.
- A large proportion obtain the medications through private prescriptions rather than public health services.
In conclusion, clinicians stress that while GLP-1 drugs are potent agents for shedding pounds, they are not a magic solution and maintained weight loss relies on combined behavioural changes.
