Fresh analysis indicates that patients who come off blockbuster weight-loss injections like semaglutide or tirzepatide can put back on lost weight far faster than those who end traditional diet and exercise programs.
Findings released in a leading health publication points out that while overweight individuals frequently drop substantial amounts of their body weight while on the medication, the weight comes back at an estimated rate of 0.8 kg per month after stopping.
"Individuals using these treatments must be cognizant of the risk of fast weight regain when the treatment is stopped," stated lead investigator Dr. Susan Jebb.
Such speed of regain suggests a return to original weight within about a year and a half.
Analyzing Approaches
The study, which reviewed dozens of trials involving over 9,000 of patients, compared the effects of GLP-1 agonists with conventional dieting.
The team emphasize that individuals who shed pounds through diet and exercise usually have a less rapid creep back—around 0.1 kg a month—once they finish.
Understanding the Quick Rebound
Experts propose the mechanism of the jabs accounts for the accelerated rebound.
These medications copy a body's own chemical called GLP-1, which controls feelings of fullness.
"Long-term administration of GLP-1 levels far above than normal might result in the system to generate a reduced amount of its endogenous hormone, and could lessen responsiveness to its effects," said Dr. Adam Collins, a nutrition expert.
"Withdrawal of this medication means appetite is unsuppressed, making overeating a significant risk."
An Ongoing Condition?
Health authorities suggest the jabs for people with weight-linked medical conditions, alongside recommended lifestyle changes.
Professionals say that, considering the significant potential of relapse, the treatment should be considered long-term.
This opinion is reinforced by drug manufacturers, who state that the findings "emphasize the long-term character of obesity," akin to managing diseases like high blood pressure.
User Testimonies
People who have discontinued the medication describe a sudden return of hunger.
"It was like a switch flipping and you're instantly starving," said a patient.
This difficulty is compounded if patients have not adopted sustainable dietary or behavioural changes during therapy.
Widespread Interest
Recent estimates suggest that a significant number of people in the UK have tried these injections in the last 12 months, with demand continuing to grow.
- Adoption is higher among females than men.
- The 40s and 50s demographic shows the highest usage rates.
- A large proportion obtain the drugs through private prescriptions rather than public health services.
Ultimately, experts caution that while these medications are powerful agents for weight loss, they are not a permanent solution and long-term success hinges on combined behavioural support.
