Fresh analysis suggests that patients who come off new weight-loss injections like semaglutide or tirzepatide may regain lost weight much more quickly than those who halt conventional diet and exercise programs.
Research printed in a prominent health publication demonstrates that while overweight people often shed substantial amounts of their body weight while undergoing treatment, the mass is regained at an average rate of nearly a kilo each month upon discontinuation.
"Users using these treatments need to be informed of the risk of fast rebound weight gain when the medication is stopped," cautioned lead investigator Dr. Susan Jebb.
Such speed of recovery means a reversion to starting mass in about 18 months.
Analyzing Therapies
The study, which reviewed 37 of studies involving thousands of participants, contrasted the effects of GLP-1 agonists with other pills.
Scientists point out that people who lose weight through dieting usually have a more gradual weight regain—perhaps 100 grams monthly—after stopping.
Understanding the Fast Rebound
Doctors believe the mode of action of the injections explains the heightened rebound.
GLP-1 drugs imitate a body's own chemical called GLP-1, which controls feelings of fullness.
"Sustained high doses of the hormone levels several times higher than the body's typical production may cause the body to produce less of its endogenous hormone, and could reduce sensitivity to its effects," noted Dr. Adam Collins, a nutrition expert.
"Discontinuation of this medication results in hunger is unsuppressed, making overeating a significant risk."
A Lifelong Condition?
Medical guidelines suggest the injections for people with obesity-related health risks, accompanied by prescribed lifestyle changes.
Professionals contend that, given the significant potential of relapse, the treatment should be considered life-long.
This opinion is echoed by pharmaceutical companies, who state that the findings "highlight the chronic nature of obesity," comparing it to managing diseases like diabetes.
Patient Testimonies
Users who have come off the jabs report a sudden return of cravings.
"It was like a trigger flipping and I was suddenly starving," described one woman.
This difficulty is worsened if individuals have not developed sustainable dietary or behavioural modifications during treatment.
Significant Adoption
Recent estimates suggest that a significant number of people in the UK have used weight-loss jabs in the last 12 months, with desire continuing to grow.
- Use is higher among females compared to men.
- The 40s and 50s age group shows the greatest level of interest.
- Many obtain the drugs through private prescriptions rather than public health services.
Ultimately, clinicians stress that while these medications are powerful tools for weight loss, they are not a magic fix and lasting health benefits hinges on combined behavioural support.
