Fresh analysis reveals that individuals who come off blockbuster GLP-1 drugs like Wegovy and Mounjaro may regain shed pounds far faster than those who halt traditional lifestyle programs.
Findings released in a prominent medical journal shows that while overweight people often shed substantial amounts of their total mass while undergoing treatment, the weight is regained at an estimated rate of 0.8 kg per month once they quit.
"People using such medications must be informed of the risk of fast rebound weight gain when the treatment ends," stated expert Dr. Susan Jebb.
That rate of regain suggests a reversion to starting weight within about a year and a half.
Comparing Approaches
The analysis, which reviewed dozens of studies involving over 9,000 of patients, compared the effects of these new drugs with other pills.
Scientists point out that people who lose weight through lifestyle changes alone typically have a more gradual weight regain—approximately 0.1 kg a month—once they finish.
Understanding the Fast Regain
Nutrition scientists propose the mode of action of the jabs explains the amplified rebound.
These medications mimic a body's own chemical called GLP-1, which moderates appetite.
"Long-term administration of GLP-1 concentrations several times higher than normal might result in the system to produce less of its endogenous hormone, and may also lessen sensitivity to its effects," said Dr. Adam Collins, a nutrition expert.
"Stopping of this GLP-1 'fix' leads to hunger is uncontrolled, making excessive eating far more likely."
A Lifelong Condition?
Health authorities recommend the jabs for people with obesity-related health risks, accompanied by recommended diet and exercise modifications.
Professionals say that, considering the significant potential of weight regain, the therapy is often long-term.
This view is supported by pharmaceutical companies, who note that the results "underscore the long-term nature of excess weight," akin to managing diseases like diabetes.
User Experiences
Users who have stopped the jabs explain a intense resurgence of cravings.
"It was like a switch activating and you're instantly ravenous," said one woman.
The struggle is compounded if individuals have not established lasting lifestyle or habit modifications during treatment.
Widespread Adoption
Figures suggest that millions of adults in the UK have tried weight-loss jabs in the last 12 months, with desire being substantial.
- Adoption is higher among females compared to men.
- The 40s and 50s age group shows the highest usage rates.
- Many obtain the drugs through private prescriptions rather than public health services.
In conclusion, experts stress that while these medications are powerful agents for weight loss, they are not a standalone fix and lasting health benefits relies on combined behavioural management.
