Fresh analysis reveals that people who come off new GLP-1 drugs like Wegovy and Mounjaro may regain lost weight far faster than those who halt conventional diet and exercise regimens.
Published data in a major medical journal shows that while overweight people frequently drop about a fifth of their body weight while using the jabs, the weight comes back at an average rate of 0.8 kg per month after stopping.
"Individuals purchasing these treatments must be cognizant of the risk of rapid rebound weight gain when the treatment is stopped," cautioned researcher Dr. Susan Jebb.
This pace of regain implies a reversion to starting mass in about a year and a half.
Analyzing Treatments
The study, which looked at dozens of studies involving thousands of patients, contrasted the outcomes of GLP-1 agonists with other pills.
The team emphasize that individuals who shed pounds through lifestyle changes alone generally experience a more gradual creep back—around 0.1 kg a month—post-intervention.
Explaining the Rapid Regain
Doctors propose the mechanism of the jabs is key to understanding the amplified regain.
GLP-1 drugs copy a natural hormone called GLP-1, which controls appetite.
"Artificially providing the hormone levels far above than normal might result in the body to generate a reduced amount of its own natural GLP-1, and may also diminish sensitivity to its actions," noted Dr. Adam Collins, a dietetics specialist.
"Withdrawal of this hormone supplement results in appetite is unsuppressed, making excessive eating a significant risk."
A Chronic Disease?
Health authorities advise the jabs for individuals with obesity-related medical conditions, accompanied by recommended lifestyle changes.
A number of clinicians contend that, given the significant potential of weight regain, the treatment should be considered ongoing.
This perspective is reinforced by pharmaceutical companies, who state that the results "underscore the chronic nature of excess weight," comparing it to managing conditions like high blood pressure.
User Accounts
Users who have come off the medication describe a sudden resurgence of appetite.
"It felt as if a switch flipping and you're instantly ravenous," said an individual.
The struggle is worsened if patients have not adopted sustainable dietary or behavioural changes during treatment.
Growing Use
Figures show that a significant number of people in the UK have used these injections in the last 12 months, with interest being substantial.
- Use is more common among females compared to males.
- The 40s and 50s age group shows the greatest usage rates.
- A large proportion access the drugs through private healthcare rather than public health services.
In conclusion, clinicians stress that while these medications are powerful agents for weight loss, they are not a permanent fix and maintained weight loss likely depends on combined lifestyle support.
