A recent study suggests that individuals who come off blockbuster GLP-1 drugs like Mounjaro or Wegovy may regain lost weight much more quickly than those who halt conventional diet and exercise programs.
Findings released in a leading medical journal demonstrates that while overweight people can lose about a fifth of their body weight while on the medication, the weight comes back at an estimated rate of nearly a kilo each month after stopping.
"People purchasing such treatments need to be informed of the danger of rapid weight regain when the treatment ends," cautioned lead investigator Dr. Susan Jebb.
Such speed of recovery implies a reversion to original mass within about a year and a half.
Weighing Approaches
The study, which examined 37 of studies involving thousands of participants, compared the effects of the injectable medications with older methods.
The team point out that individuals who lose weight through dieting generally have a more gradual creep back—approximately 100 grams monthly—post-intervention.
Understanding the Fast Regain
Nutrition scientists believe the mechanism of the injections is key to understanding the heightened weight return.
The injections mimic a body's own chemical called glucagon-like peptide-1, which controls feelings of fullness.
"Sustained high doses of the hormone levels far above than the body's typical production may cause the system to produce less of its own natural hormone, and could reduce responsiveness to its effects," said Dr. Adam Collins, a nutrition expert.
"Withdrawal of this hormone supplement leads to appetite is no longer kept in check, making overeating much more probable."
A Lifelong Condition?
Health authorities advise the jabs for people with weight-linked health risks, accompanied by prescribed lifestyle changes.
Many experts say that, due to the likelihood of weight regain, the therapy might need to be ongoing.
This view is supported by drug manufacturers, who say that the findings "highlight the persistent character of excess weight," akin to managing conditions like diabetes.
User Testimonies
Individuals who have discontinued the jabs report a sudden resurgence of hunger.
"I experienced a trigger activating and I was suddenly starving," said one woman.
This difficulty is exacerbated if users have not established lasting lifestyle or habit modifications during treatment.
Growing Adoption
Recent estimates show that millions of people in the UK have used these injections in the past year, with desire remaining high.
- Use is more common among women than males.
- The 40s and 50s age group shows the highest level of interest.
- Many access the drugs through private prescriptions rather than the NHS.
Finally, clinicians emphasize that while these medications are powerful tools for weight loss, they are not a permanent cure and maintained weight loss likely depends on ongoing lifestyle management.
