A recent study suggests that people who discontinue blockbuster slimming jabs like Mounjaro or Wegovy may regain reduced body mass much more quickly than those who halt conventional diet and exercise plans.
Research printed in a leading medical journal demonstrates that while overweight individuals can lose about a fifth of their total mass while undergoing treatment, the weight returns at an estimated rate of 0.8 kg per month after stopping.
"Individuals using such medications should be cognizant of the risk of fast weight regain when the medication ends," stated lead investigator Dr. Susan Jebb.
That rate of regain means a reversion to pre-treatment weight within about one and a half years.
Comparing Approaches
The analysis, which looked at dozens of studies involving over 9,000 of participants, compared the effects of GLP-1 agonists with older methods.
Scientists emphasize that individuals who lose weight through dieting typically experience a less rapid weight regain—approximately 100 grams monthly—post-intervention.
The Reason for the Fast Rebound
Experts suggest the mode of action of the jabs explains the accelerated rebound.
The injections imitate a body's own chemical called GLP-1, which moderates feelings of fullness.
"Artificially providing the hormone levels several times higher than normal could lead to the body to generate a reduced amount of its own natural GLP-1, and could lessen sensitivity to its effects," said Dr. Adam Collins, a dietetics researcher.
"Stopping of this GLP-1 'fix' means appetite is unsuppressed, making excessive eating much more probable."
An Ongoing Issue?
The NHS suggest the injections for individuals with weight-linked health risks, alongside recommended diet and exercise modifications.
A number of clinicians say that, due to the likelihood of weight regain, the therapy is often life-long.
This opinion is reinforced by drug manufacturers, who state that the findings "highlight the chronic character of excess weight," similar to managing diseases like hypertension.
User Experiences
Users who have come off the jabs describe a intense return of cravings.
"It was like a trigger activating and I was suddenly ravenous," said a patient.
The struggle is compounded if patients have not adopted sustainable dietary or behavioural modifications during therapy.
Significant Interest
Survey data indicate that millions of adults in the UK have tried these injections in the last 12 months, with interest remaining high.
- Use is higher among women than men.
- The middle-aged demographic shows the greatest level of interest.
- Many access the drugs through private prescriptions rather than the NHS.
In conclusion, researchers emphasize that while these medications are potent tools for weight loss, they are not a permanent fix and lasting health benefits hinges on combined lifestyle management.
