New research suggests that patients who stop using new slimming jabs like Wegovy and Mounjaro tend to recover shed pounds at a significantly accelerated pace than those who halt conventional lifestyle plans.
Research printed in a leading health publication demonstrates that while overweight individuals often shed about a fifth of their body weight while undergoing treatment, the weight comes back at an average rate of 0.8 kg per month upon discontinuation.
"Individuals buying these medications must be cognizant of the danger of fast rebound weight gain when the medication ends," cautioned expert Dr. Susan Jebb.
That rate of recovery implies a reversion to original weight within about a year and a half.
Analyzing Therapies
The study, which reviewed dozens of trials involving over 9,000 of participants, contrasted the effects of these new drugs with older methods.
Researchers note that people who shed pounds through diet and exercise typically experience a slower weight regain—around 100 grams monthly—once they finish.
Understanding the Fast Regain
Experts propose the mechanism of the injections is key to understanding the heightened rebound.
GLP-1 drugs mimic a natural hormone called GLP-1, which moderates hunger.
"Long-term administration of GLP-1 levels several times higher than normal could lead to the system to produce less of its endogenous GLP-1, and may also reduce sensitivity to its effects," said Dr. Adam Collins, a dietetics expert.
"Discontinuation of this GLP-1 'fix' means hunger is uncontrolled, making binge eating a significant risk."
An Ongoing Issue?
Medical guidelines advise the injections for individuals with obesity-related medical conditions, alongside prescribed diet and exercise modifications.
A number of clinicians say that, due to the significant potential of relapse, the treatment is often long-term.
This opinion is supported by pharmaceutical companies, who note that the results "emphasize the chronic character of excess weight," akin to managing conditions like high blood pressure.
Patient Accounts
Individuals who have discontinued the jabs describe a powerful resurgence of hunger.
"I experienced a switch activating and you're instantly extremely hungry," recalled one woman.
This challenge is exacerbated if users have not developed lasting lifestyle or habit changes during treatment.
Significant Adoption
Recent estimates show that a significant number of people in the UK have used weight-loss jabs in the past year, with interest remaining high.
- Use is higher among women than men.
- The middle-aged age group shows the greatest level of interest.
- A large proportion access the drugs through private healthcare rather than the NHS.
Ultimately, clinicians caution that while these medications are potent tools for shedding pounds, they are not a standalone solution and maintained weight loss relies on ongoing lifestyle management.
