Fresh analysis reveals that patients who come off blockbuster slimming jabs like semaglutide or tirzepatide may regain reduced body mass far faster than those who halt traditional lifestyle programs.
Findings released in a major medical journal shows that while obese people frequently drop a large proportion of their total mass while undergoing treatment, the mass returns at an estimated rate of 0.8 kg per month once they quit.
"Individuals buying such medications should be informed of the risk of quick rebound weight gain when the therapy is stopped," stated lead investigator Dr. Susan Jebb.
Such speed of regain means a reversion to original weight in about 18 months.
Weighing Approaches
The research, which looked at 37 of studies involving over 9,000 of participants, compared the outcomes of GLP-1 agonists with older methods.
Scientists note that people who lose weight through dieting generally experience a more gradual weight regain—perhaps 0.1 kg a month—post-intervention.
The Reason for the Quick Regain
Experts propose the mode of action of the drugs explains the accelerated weight return.
These medications copy a body's own chemical called GLP-1, which controls hunger.
"Long-term administration of the hormone concentrations far above than normal might result in the system to produce less of its endogenous hormone, and could reduce sensitivity to its actions," said Dr. Adam Collins, a dietetics expert.
"Discontinuation of this GLP-1 'fix' leads to appetite is uncontrolled, making overeating far more likely."
An Ongoing Condition?
Health authorities advise the injections for individuals with weight-linked medical conditions, alongside prescribed lifestyle changes.
A number of clinicians say that, due to the high risk of weight regain, the therapy should be considered life-long.
This perspective is echoed by pharmaceutical companies, who state that the findings "underscore the persistent nature of obesity," similar to managing diseases like high blood pressure.
Patient Experiences
Individuals who have discontinued the jabs report a sudden resurgence of hunger.
"It felt as if something activating and you're instantly extremely hungry," said an individual.
The struggle is worsened if users have not established permanent lifestyle or habit modifications during treatment.
Widespread Interest
Survey data show that millions of people in the UK have tried weight-loss jabs in the last 12 months, with interest being substantial.
- Adoption is greater among women compared to males.
- The middle-aged demographic shows the greatest level of interest.
- Many obtain the drugs through private prescriptions rather than the NHS.
In conclusion, experts stress that while these medications are potent agents for shedding pounds, they are not a magic solution and maintained weight loss hinges on combined lifestyle changes.
