New research indicates that patients who stop using blockbuster weight-loss injections like semaglutide or tirzepatide tend to recover lost weight far faster than those who stop traditional lifestyle programs.
Published data in a prominent health publication shows that while obese people often shed a large proportion of their total mass while undergoing treatment, the weight returns at an estimated rate of nearly a kilo each month upon discontinuation.
"Individuals purchasing such treatments should be informed of the risk of rapid rebound weight gain when the medication ends," cautioned expert Dr. Susan Jebb.
This pace of regain suggests a reversion to pre-treatment weight within about a year and a half.
Comparing Approaches
The analysis, which examined 37 of trials involving thousands of patients, contrasted the effects of the injectable medications with other pills.
Researchers point out that individuals who lose weight through lifestyle changes alone usually have a less rapid creep back—around 0.1 kg a month—after stopping.
Explaining the Fast Rebound
Doctors believe the mechanism of the jabs accounts for the accelerated weight return.
These medications copy a natural hormone called GLP-1, which moderates appetite.
"Artificially providing the hormone concentrations far above than the body's typical production may cause the body to generate a reduced amount of its endogenous GLP-1, and could reduce responsiveness to its effects," explained Dr. Adam Collins, a nutrition expert.
"Withdrawal of this medication results in hunger is unsuppressed, making overeating far more likely."
A Lifelong Disease?
The NHS suggest the jabs for individuals with obesity-related medical conditions, accompanied by prescribed diet and exercise modifications.
A number of clinicians contend that, given the high risk of relapse, the treatment should be considered ongoing.
This view is reinforced by pharmaceutical companies, who state that the results "underscore the long-term character of excess weight," similar to managing diseases like high blood pressure.
Patient Accounts
People who have come off the jabs explain a sudden resurgence of cravings.
"It felt as if a trigger activating and you're instantly ravenous," said an individual.
The struggle is worsened if patients have not developed permanent dietary or behavioural changes during treatment.
Widespread Adoption
Survey data suggest that millions of adults in the UK have tried these injections in the past year, with demand remaining high.
- Adoption is higher among women than men.
- The middle-aged age group shows the greatest usage rates.
- Many access the drugs through private prescriptions rather than the NHS.
In conclusion, researchers caution that while these medications are effective tools for weight loss, they are not a permanent solution and lasting health benefits likely depends on combined lifestyle changes.
