Fresh analysis reveals that people who come off popular slimming jabs like Wegovy and Mounjaro tend to recover reduced body mass far faster than those who stop conventional lifestyle programs.
Findings released in a major health publication shows that while overweight people frequently drop about a fifth of their body weight while on the medication, the weight returns at an average rate of 0.8 kg per month after stopping.
"People using these treatments need to be aware of the danger of rapid weight regain when the medication ends," cautioned expert Dr. Susan Jebb.
That rate of regain means a reversion to original weight in about 18 months.
Weighing Therapies
The study, which reviewed 37 of studies involving thousands of participants, contrasted the effects of these new drugs with other pills.
The team note that individuals who lose weight through diet and exercise typically have a more gradual weight regain—around 0.1 kg a month—once they finish.
Understanding the Fast Regain
Nutrition scientists suggest the mechanism of the jabs accounts for the amplified rebound.
GLP-1 drugs mimic a body's own chemical called GLP-1, which controls feelings of fullness.
"Long-term administration of the hormone levels far above than normal may cause the system to produce less of its endogenous GLP-1, and may also reduce responsiveness to its effects," noted Dr. Adam Collins, a nutrition researcher.
"Withdrawal of this GLP-1 'fix' means hunger is unsuppressed, making excessive eating far more likely."
A Chronic Condition?
Health authorities advise the injections for people with weight-linked health risks, alongside prescribed diet and exercise modifications.
Professionals say that, given the significant potential of weight regain, the treatment should be considered long-term.
This view is reinforced by pharmaceutical companies, who state that the results "emphasize the chronic character of obesity," comparing it to managing conditions like high blood pressure.
Patient Testimonies
Users who have stopped the medication explain a intense return of appetite.
"It felt as if something flipping and I was suddenly starving," recalled one woman.
This challenge is exacerbated if users have not adopted lasting dietary or behavioural modifications during treatment.
Significant Adoption
Survey data suggest that millions of people in the UK have used weight-loss jabs in the last 12 months, with desire being substantial.
- Adoption is more common among women than males.
- The middle-aged demographic shows the greatest usage rates.
- Many obtain the drugs through private prescriptions rather than the NHS.
Finally, experts stress that while these medications are effective tools for weight loss, they are not a permanent cure and long-term success hinges on ongoing lifestyle management.
