Fresh analysis indicates that patients who come off popular weight-loss injections like Wegovy and Mounjaro can put back on reduced body mass much more quickly than those who halt traditional lifestyle regimens.
Research printed in a prominent health publication shows that while overweight people can lose substantial amounts of their body weight while undergoing treatment, the mass is regained at an average rate of 0.8 kg per month once they quit.
"Users buying such treatments must be aware of the potential of rapid rebound weight gain when the treatment is stopped," cautioned expert Dr. Susan Jebb.
Such speed of regain means a reversion to pre-treatment mass in about a year and a half.
Comparing Treatments
The analysis, which reviewed dozens of trials involving thousands of patients, contrasted the outcomes of these new drugs with older methods.
Researchers point out that people who lose weight through lifestyle changes alone usually have a slower weight regain—around 0.1 kg a month—after stopping.
Understanding the Quick Regain
Nutrition scientists suggest the way of the jabs accounts for the accelerated weight return.
These medications imitate a natural hormone called GLP-1, which helps regulate appetite.
"Artificially providing GLP-1 concentrations several times higher than normal may cause the body to generate a reduced amount of its endogenous hormone, and could reduce sensitivity to its effects," said Dr. Adam Collins, a dietetics expert.
"Discontinuation of this GLP-1 'fix' results in appetite is uncontrolled, making excessive eating far more likely."
An Ongoing Issue?
Medical guidelines suggest the jabs for people with obesity-related medical conditions, alongside recommended lifestyle changes.
Many experts argue that, considering the significant potential of relapse, the treatment might need to be ongoing.
This view is supported by drug manufacturers, who note that the findings "highlight the long-term character of excess weight," similar to managing conditions like hypertension.
User Experiences
People who have stopped the medication describe a powerful resurgence of appetite.
"It was like a trigger activating and I was suddenly starving," said a patient.
This challenge is exacerbated if users have not adopted lasting dietary or behavioural modifications during treatment.
Growing Adoption
Figures suggest that millions of adults in the UK have used weight-loss jabs in the last 12 months, with demand remaining high.
- Adoption is greater among females compared to men.
- The 40s and 50s age group shows the highest usage rates.
- A large proportion obtain the drugs through private healthcare rather than public health services.
Ultimately, researchers caution that while GLP-1 drugs are potent agents for weight loss, they are not a permanent cure and lasting health benefits relies on combined lifestyle changes.
