Fresh analysis suggests that people who come off blockbuster GLP-1 drugs like Mounjaro or Wegovy tend to recover shed pounds much more quickly than those who stop traditional diet and exercise regimens.
Research printed in a leading medical journal points out that while overweight people often shed about a fifth of their body weight while on the medication, the weight comes back at an average rate of 0.8 kg per month after stopping.
"Individuals purchasing such medications need to be cognizant of the potential of quick weight regain when the medication is stopped," warns expert Dr. Susan Jebb.
Such speed of recovery implies a reversion to starting mass in about one and a half years.
Comparing Therapies
The study, which looked at dozens of studies involving thousands of patients, compared the effects of the injectable medications with conventional dieting.
Scientists note that people who shed pounds through lifestyle changes alone usually experience a slower creep back—perhaps 100 grams monthly—post-intervention.
Explaining the Fast Regain
Doctors suggest the mode of action of the drugs explains the accelerated weight return.
These medications imitate a body's own chemical called GLP-1, which helps regulate appetite.
"Sustained high doses of GLP-1 concentrations far above than the body's typical production could lead to the system to produce less of its own natural GLP-1, and could diminish sensitivity to its actions," explained Dr. Adam Collins, a nutrition specialist.
"Discontinuation of this hormone supplement means hunger is unsuppressed, making overeating a significant risk."
A Lifelong Disease?
The NHS recommend the injections for people with weight-linked health risks, accompanied by prescribed lifestyle changes.
Many experts argue that, due to the likelihood of relapse, the therapy might need to be life-long.
This opinion is reinforced by drug manufacturers, who say that the findings "highlight the long-term nature of obesity," akin to managing conditions like diabetes.
User Testimonies
People who have stopped the medication report a sudden return of hunger.
"I experienced a switch that goes on and I was suddenly starving," recalled one woman.
This difficulty is worsened if users have not established sustainable dietary or behavioural changes during therapy.
Growing Adoption
Recent estimates indicate that millions of people in the UK have tried these injections in the last 12 months, with interest being substantial.
- Adoption is more common among females compared to men.
- The middle-aged demographic shows the highest usage rates.
- Many access the medications through private prescriptions rather than the NHS.
In conclusion, clinicians stress that while these medications are effective agents for weight loss, they are not a magic fix and long-term success hinges on ongoing lifestyle support.
