Fresh analysis suggests that patients who discontinue blockbuster weight-loss injections like semaglutide or tirzepatide tend to recover reduced body mass much more quickly than those who halt traditional diet and exercise programs.
Research printed in a prominent medical journal shows that while obese people often shed substantial amounts of their total mass while on the medication, the weight comes back at an average rate of 0.8 kg per month once they quit.
"Individuals using these drugs need to be aware of the risk of fast weight regain when the medication is stopped," warns expert Dr. Susan Jebb.
That rate of recovery suggests a reversion to starting mass in about a year and a half.
Comparing Treatments
The research, which reviewed 37 of trials involving thousands of patients, contrasted the results of the injectable medications with other pills.
The team emphasize that individuals who shed pounds through dieting generally experience a more gradual creep back—around 100 grams monthly—post-intervention.
Understanding the Fast Regain
Doctors propose the mechanism of the jabs explains the amplified rebound.
The injections imitate a body's own chemical called glucagon-like peptide-1, which helps regulate feelings of fullness.
"Long-term administration of the hormone concentrations far above than the body's typical production might result in the system to produce less of its own natural GLP-1, and may also reduce responsiveness to its actions," said Dr. Adam Collins, a dietetics researcher.
"Stopping of this GLP-1 'fix' results in hunger is no longer kept in check, making binge eating far more likely."
A Lifelong Issue?
The NHS suggest the injections for individuals with weight-linked medical conditions, accompanied by recommended lifestyle changes.
Professionals say that, due to the likelihood of weight regain, the treatment is often long-term.
This view is reinforced by pharmaceutical companies, who say that the findings "underscore the long-term character of excess weight," akin to managing conditions like diabetes.
User Accounts
Individuals who have discontinued the medication explain a intense return of appetite.
"I experienced something flipping and you become starving," said a patient.
This challenge is compounded if patients have not adopted lasting lifestyle or habit modifications during therapy.
Growing Interest
Recent estimates indicate that a significant number of people in the UK have tried weight-loss jabs in the last 12 months, with interest continuing to grow.
- Use is higher among females compared to males.
- The middle-aged age group shows the greatest usage rates.
- A large proportion access the medications through private healthcare rather than public health services.
Finally, researchers caution that while these medications are potent agents for weight loss, they are not a permanent cure and lasting health benefits relies on integrated behavioural management.
