A recent study indicates that patients who stop using new weight-loss injections like Wegovy and Mounjaro may regain shed pounds far faster than those who stop conventional diet and exercise programs.
Findings released in a major health publication demonstrates that while obese people can lose a large proportion of their body weight while using the jabs, the mass is regained at an average rate of nearly a kilo each month after stopping.
"Users purchasing such medications must be aware of the risk of fast rebound weight gain when the medication concludes," stated lead investigator Dr. Susan Jebb.
This pace of regain suggests a reversion to starting weight within about 18 months.
Weighing Approaches
The analysis, which examined 37 of trials involving over 9,000 of participants, contrasted the results of GLP-1 agonists with other pills.
The team note that people who lose weight through dieting generally have a more gradual creep back—approximately 0.1 kg a month—after stopping.
Understanding the Fast Regain
Nutrition scientists propose the mechanism of the injections is key to understanding the heightened rebound.
GLP-1 drugs imitate a body's own chemical called GLP-1, which moderates appetite.
"Sustained high doses of the hormone concentrations several times higher than the body's typical production might result in the body to produce less of its own natural GLP-1, and could diminish responsiveness to its effects," explained Dr. Adam Collins, a dietetics researcher.
"Withdrawal of this GLP-1 'fix' results in hunger is unsuppressed, making excessive eating a significant risk."
An Ongoing Issue?
The NHS advise the jabs for individuals with weight-linked medical conditions, alongside prescribed lifestyle changes.
Many experts say that, due to the significant potential of weight regain, the treatment should be considered life-long.
This opinion is supported by drug manufacturers, who note that the results "highlight the persistent nature of excess weight," akin to managing diseases like hypertension.
User Testimonies
Individuals who have stopped the medication explain a intense resurgence of hunger.
"It was like a switch flipping and you become ravenous," said one woman.
The struggle is exacerbated if patients have not adopted sustainable dietary or behavioural changes during therapy.
Widespread Adoption
Survey data suggest that a significant number of people in the UK have tried weight-loss jabs in the last 12 months, with demand being substantial.
- Use is more common among women than males.
- The 40s and 50s demographic shows the greatest level of interest.
- A large proportion obtain the drugs through private prescriptions rather than the NHS.
Ultimately, researchers emphasize that while the jabs are potent agents for weight loss, they are not a magic fix and maintained weight loss likely depends on combined behavioural management.
