Fresh analysis indicates that people who come off blockbuster weight-loss injections like Wegovy and Mounjaro tend to recover reduced body mass at a significantly accelerated pace than those who stop traditional diet and exercise plans.
Published data in a leading medical journal points out that while obese people can lose substantial amounts of their body weight while on the medication, the weight comes back at an estimated rate of 0.8 kg per month once they quit.
"Individuals using such medications need to be aware of the risk of rapid rebound weight gain when the medication is stopped," cautioned expert Dr. Susan Jebb.
Such speed of regain suggests a return to starting mass in about 18 months.
Analyzing Approaches
The study, which examined dozens of studies involving over 9,000 of patients, contrasted the results of the injectable medications with older methods.
Scientists note that people who lose weight through diet and exercise typically have a slower weight regain—perhaps 0.1 kg a month—post-intervention.
Explaining the Rapid Rebound
Nutrition scientists suggest the mechanism of the drugs accounts for the amplified weight return.
The injections mimic a body's own chemical called glucagon-like peptide-1, which moderates hunger.
"Long-term administration of the hormone concentrations far above than normal might result in the body to generate a reduced amount of its endogenous GLP-1, and may also lessen responsiveness to its effects," noted Dr. Adam Collins, a dietetics specialist.
"Discontinuation of this GLP-1 'fix' means hunger is no longer kept in check, making overeating a significant risk."
A Chronic Disease?
Health authorities suggest the jabs for people with weight-linked medical conditions, accompanied by prescribed lifestyle changes.
Many experts argue that, considering the high risk of relapse, the treatment might need to be ongoing.
This view is reinforced by drug manufacturers, who state that the results "underscore the chronic nature of obesity," comparing it to managing conditions like hypertension.
Patient Accounts
People who have stopped the jabs describe a sudden resurgence of appetite.
"It was like a trigger activating and you're instantly ravenous," recalled an individual.
The struggle is compounded if patients have not adopted permanent lifestyle or habit modifications during treatment.
Widespread Adoption
Survey data suggest that millions of people in the UK have used these injections in the last 12 months, with desire being substantial.
- Adoption is higher among women than males.
- The 40s and 50s demographic shows the highest level of interest.
- Many obtain the medications through private prescriptions rather than the NHS.
Finally, experts stress that while these medications are potent agents for weight loss, they are not a magic fix and long-term success relies on integrated lifestyle changes.
