A recent study indicates that people who come off blockbuster weight-loss injections like Mounjaro or Wegovy can put back on lost weight at a significantly accelerated pace than those who end traditional diet and exercise regimens.
Published data in a prominent medical journal demonstrates that while obese individuals often shed about a fifth of their body weight while on the medication, the weight comes back at an average rate of nearly a kilo each month once they quit.
"People using these treatments should be aware of the danger of quick weight regain when the treatment ends," warns lead investigator Dr. Susan Jebb.
That rate of recovery implies a return to pre-treatment mass within about a year and a half.
Analyzing Treatments
The study, which reviewed dozens of studies involving thousands of patients, compared the effects of these new drugs with older methods.
The team emphasize that individuals who shed pounds through dieting typically experience a more gradual creep back—around 100 grams monthly—after stopping.
Understanding the Fast Regain
Doctors believe the mechanism of the jabs explains the amplified regain.
The injections imitate a natural hormone called GLP-1, which controls feelings of fullness.
"Long-term administration of GLP-1 concentrations far above than the body's typical production may cause the body to produce less of its endogenous GLP-1, and could lessen responsiveness to its effects," noted Dr. Adam Collins, a nutrition specialist.
"Withdrawal of this medication results in hunger is uncontrolled, making overeating a significant risk."
A Chronic Disease?
The NHS recommend the jabs for individuals with weight-linked health risks, accompanied by prescribed lifestyle changes.
Many experts argue that, due to the significant potential of weight regain, the treatment might need to be life-long.
This opinion is supported by drug manufacturers, who note that the results "emphasize the long-term character of obesity," similar to managing conditions like high blood pressure.
User Testimonies
Users who have come off the medication report a sudden return of cravings.
"I experienced something flipping and I was suddenly ravenous," said one woman.
This difficulty is worsened if users have not adopted sustainable dietary or behavioural changes during treatment.
Widespread Adoption
Survey data suggest that a significant number of people in the UK have used weight-loss jabs in the last 12 months, with interest continuing to grow.
- Adoption is greater among females compared to males.
- The middle-aged demographic shows the greatest level of interest.
- Many obtain the medications through private healthcare rather than the NHS.
Ultimately, researchers caution that while the jabs are effective agents for weight loss, they are not a standalone solution and long-term success hinges on combined lifestyle management.