Fresh analysis suggests that people who come off blockbuster weight-loss injections like semaglutide or tirzepatide can put back on reduced body mass far faster than those who stop traditional diet and exercise programs.
Published data in a prominent medical journal shows that while overweight individuals frequently drop substantial amounts of their total mass while on the medication, the weight is regained at an average rate of 0.8 kg per month upon discontinuation.
"Users using such treatments need to be aware of the danger of quick weight regain when the therapy ends," stated lead investigator Dr. Susan Jebb.
This pace of recovery suggests a reversion to pre-treatment weight within about 18 months.
Analyzing Treatments
The research, which examined 37 of trials involving thousands of patients, compared the effects of GLP-1 agonists with conventional dieting.
Researchers point out that people who shed pounds through lifestyle changes alone typically experience a slower weight regain—approximately 100 grams monthly—post-intervention.
Understanding the Quick Regain
Nutrition scientists propose the mode of action of the injections explains the heightened regain.
GLP-1 drugs imitate a natural hormone called GLP-1, which controls feelings of fullness.
"Long-term administration of the hormone levels far above than the body's typical production may cause the body to generate a reduced amount of its own natural hormone, and may also reduce responsiveness to its effects," explained Dr. Adam Collins, a dietetics researcher.
"Stopping of this GLP-1 'fix' leads to hunger is unsuppressed, making excessive eating much more probable."
An Ongoing Condition?
The NHS suggest the injections for individuals with obesity-related medical conditions, alongside recommended diet and exercise modifications.
Professionals contend that, considering the likelihood of weight regain, the therapy should be considered long-term.
This view is echoed by drug manufacturers, who say that the findings "emphasize the long-term nature of obesity," comparing it to managing conditions like high blood pressure.
User Accounts
People who have discontinued the jabs describe a powerful resurgence of hunger.
"It was like a switch that goes on and you become extremely hungry," described a patient.
This difficulty is worsened if individuals have not adopted sustainable lifestyle or habit changes during therapy.
Significant Use
Survey data suggest that millions of people in the UK have used weight-loss jabs in the past year, with interest remaining high.
- Use is more common among females than males.
- The 40s and 50s demographic shows the highest usage rates.
- Many obtain the medications through private healthcare rather than public health services.
Ultimately, experts emphasize that while these medications are potent tools for shedding pounds, they are not a magic solution and lasting health benefits likely depends on combined lifestyle management.
