New research reveals that patients who come off popular weight-loss injections like semaglutide or tirzepatide may regain lost weight far faster than those who stop conventional diet and exercise plans.
Published data in a prominent medical journal points out that while obese people can lose about a fifth of their body weight while undergoing treatment, the weight returns at an estimated rate of 0.8 kg per month upon discontinuation.
"People buying such medications should be aware of the potential of rapid rebound weight gain when the medication is stopped," cautioned expert Dr. Susan Jebb.
That rate of recovery implies a reversion to starting mass within about one and a half years.
Comparing Approaches
The analysis, which looked at dozens of trials involving over 9,000 of participants, contrasted the outcomes of these new drugs with conventional dieting.
The team note that people who lose weight through diet and exercise generally experience a more gradual creep back—around 0.1 kg a month—once they finish.
Understanding the Fast Regain
Doctors believe the mode of action of the jabs is key to understanding the heightened regain.
The injections mimic a body's own chemical called glucagon-like peptide-1, which controls hunger.
"Long-term administration of GLP-1 concentrations several times higher than the body's typical production might result in the body to produce less of its own natural GLP-1, and may also lessen sensitivity to its actions," noted Dr. Adam Collins, a dietetics specialist.
"Withdrawal of this medication leads to hunger is unsuppressed, making binge eating much more probable."
An Ongoing Condition?
The NHS advise the injections for individuals with obesity-related medical conditions, accompanied by recommended diet and exercise modifications.
A number of clinicians say that, given the high risk of weight regain, the therapy is often life-long.
This view is reinforced by drug manufacturers, who note that the findings "underscore the chronic nature of obesity," comparing it to managing conditions like diabetes.
User Testimonies
Individuals who have stopped the medication report a powerful resurgence of cravings.
"It was like a trigger that goes on and you become starving," described an individual.
The struggle is compounded if users have not developed permanent lifestyle or habit changes during therapy.
Widespread Interest
Figures suggest that a significant number of adults in the UK have used these injections in the last 12 months, with interest remaining high.
- Adoption is more common among women than males.
- The middle-aged age group shows the greatest level of interest.
- Many obtain the drugs through private healthcare rather than public health services.
In conclusion, experts emphasize that while these medications are effective tools for weight loss, they are not a magic cure and maintained weight loss relies on ongoing lifestyle changes.
