A recent study indicates that patients who stop using new GLP-1 drugs like Wegovy and Mounjaro may regain lost weight far faster than those who end conventional diet and exercise plans.
Published data in a major health publication points out that while overweight people frequently drop substantial amounts of their body weight while undergoing treatment, the mass is regained at an average rate of 0.8 kg per month upon discontinuation.
"Users buying such medications need to be cognizant of the danger of rapid rebound weight gain when the treatment concludes," cautioned lead investigator Dr. Susan Jebb.
That rate of regain suggests a reversion to starting mass in about 18 months.
Weighing Therapies
The research, which looked at dozens of studies involving thousands of participants, contrasted the results of the injectable medications with other pills.
The team emphasize that people who lose weight through lifestyle changes alone typically have a less rapid creep back—perhaps 100 grams monthly—once they finish.
The Reason for the Fast Regain
Nutrition scientists believe the mode of action of the drugs accounts for the heightened weight return.
These medications mimic a body's own chemical called glucagon-like peptide-1, which controls feelings of fullness.
"Sustained high doses of GLP-1 levels far above than the body's typical production may cause the body to generate a reduced amount of its endogenous GLP-1, and could lessen responsiveness to its actions," explained Dr. Adam Collins, a dietetics researcher.
"Withdrawal of this medication leads to appetite is unsuppressed, making overeating far more likely."
An Ongoing Condition?
Medical guidelines advise the jabs for people with obesity-related health risks, alongside recommended lifestyle changes.
A number of clinicians argue that, due to the significant potential of relapse, the therapy might need to be life-long.
This opinion is echoed by pharmaceutical companies, who note that the findings "emphasize the persistent nature of excess weight," similar to managing diseases like hypertension.
User Testimonies
Users who have stopped the jabs report a powerful resurgence of appetite.
"I experienced something flipping and you become starving," described an individual.
The struggle is exacerbated if individuals have not adopted permanent dietary or behavioural changes during therapy.
Growing Interest
Survey data suggest that millions of adults in the UK have tried these injections in the past year, with desire being substantial.
- Adoption is greater among females compared to males.
- The 40s and 50s demographic shows the highest usage rates.
- A large proportion obtain the drugs through private healthcare rather than the NHS.
Finally, experts emphasize that while these medications are effective tools for weight loss, they are not a magic cure and maintained weight loss likely depends on combined behavioural management.
