A recent study indicates that individuals who come off blockbuster weight-loss injections like semaglutide or tirzepatide may regain reduced body mass far faster than those who stop traditional lifestyle plans.
Research printed in a prominent medical journal demonstrates that while obese individuals often shed substantial amounts of their body weight while undergoing treatment, the mass is regained at an average rate of 0.8 kg per month upon discontinuation.
"Users buying these drugs must be informed of the risk of fast weight regain when the medication ends," warns lead investigator Dr. Susan Jebb.
This pace of recovery suggests a return to starting mass within about 18 months.
Weighing Treatments
The study, which examined 37 of studies involving over 9,000 of participants, contrasted the effects of these new drugs with conventional dieting.
The team point out that people who lose weight through lifestyle changes alone typically have a less rapid creep back—approximately 100 grams monthly—after stopping.
The Reason for the Quick Rebound
Nutrition scientists propose the mode of action of the injections explains the heightened rebound.
GLP-1 drugs copy a body's own chemical called GLP-1, which moderates appetite.
"Artificially providing the hormone levels far above than the body's typical production could lead to the system to produce less of its endogenous hormone, and could diminish sensitivity to its effects," said Dr. Adam Collins, a dietetics researcher.
"Discontinuation of this GLP-1 'fix' means hunger is unsuppressed, making binge eating much more probable."
A Chronic Issue?
Medical guidelines recommend the injections for individuals with obesity-related medical conditions, accompanied by recommended diet and exercise modifications.
Many experts say that, given the high risk of relapse, the treatment is often ongoing.
This view is reinforced by pharmaceutical companies, who state that the results "emphasize the persistent nature of excess weight," akin to managing diseases like diabetes.
Patient Experiences
People who have stopped the jabs describe a powerful return of appetite.
"It was like a switch that goes on and I was suddenly ravenous," described an individual.
This challenge is worsened if patients have not established lasting dietary or behavioural modifications during treatment.
Growing Adoption
Survey data suggest that millions of people in the UK have tried weight-loss jabs in the last 12 months, with desire being substantial.
- Use is more common among women than men.
- The 40s and 50s age group shows the highest level of interest.
- Many access the drugs through private prescriptions rather than the NHS.
In conclusion, clinicians emphasize that while the jabs are potent tools for shedding pounds, they are not a magic fix and maintained weight loss hinges on ongoing lifestyle support.
