A recent study reveals that individuals who stop using blockbuster weight-loss injections like semaglutide or tirzepatide may regain reduced body mass far faster than those who halt conventional diet and exercise regimens.
Findings released in a major medical journal shows that while obese individuals often shed substantial amounts of their total mass while on the medication, the weight returns at an estimated rate of 0.8 kg per month upon discontinuation.
"Users purchasing such medications need to be aware of the danger of fast rebound weight gain when the medication concludes," warns lead investigator Dr. Susan Jebb.
That rate of regain implies a return to starting mass within about a year and a half.
Comparing Therapies
The study, which examined dozens of studies involving over 9,000 of participants, compared the outcomes of GLP-1 agonists with other pills.
Scientists emphasize that individuals who shed pounds through dieting typically experience a slower weight regain—perhaps 0.1 kg a month—once they finish.
Explaining the Fast Regain
Nutrition scientists believe the mechanism of the drugs explains the accelerated rebound.
These medications copy a body's own chemical called GLP-1, which controls appetite.
"Sustained high doses of the hormone concentrations several times higher than the body's typical production could lead to the system to generate a reduced amount of its endogenous hormone, and could reduce responsiveness to its effects," noted Dr. Adam Collins, a dietetics expert.
"Withdrawal of this medication means hunger is unsuppressed, making overeating a significant risk."
An Ongoing Disease?
The NHS advise the jabs for individuals with weight-linked medical conditions, accompanied by recommended diet and exercise modifications.
A number of clinicians contend that, given the high risk of relapse, the therapy should be considered long-term.
This view is echoed by pharmaceutical companies, who state that the results "emphasize the long-term character of excess weight," comparing it to managing conditions like hypertension.
Patient Accounts
Individuals who have come off the jabs describe a intense resurgence of hunger.
"I experienced something flipping and I was suddenly starving," recalled one woman.
The struggle is exacerbated if patients have not established permanent lifestyle or habit changes during treatment.
Growing Adoption
Recent estimates indicate that millions of people in the UK have used weight-loss jabs in the last 12 months, with interest remaining high.
- Use is greater among women compared to males.
- The middle-aged demographic shows the greatest level of interest.
- A large proportion access the medications through private healthcare rather than public health services.
In conclusion, clinicians caution that while the jabs are powerful agents for shedding pounds, they are not a standalone solution and maintained weight loss likely depends on ongoing behavioural changes.