New research indicates that individuals who discontinue new weight-loss injections like semaglutide or tirzepatide tend to recover lost weight far faster than those who halt conventional diet and exercise plans.
Findings released in a prominent medical journal demonstrates that while obese people frequently drop about a fifth of their total mass while on the medication, the mass returns at an estimated rate of nearly a kilo each month upon discontinuation.
"Users using these medications must be informed of the potential of rapid rebound weight gain when the therapy is stopped," cautioned lead investigator Dr. Susan Jebb.
That rate of recovery suggests a return to pre-treatment weight within about a year and a half.
Analyzing Approaches
The research, which looked at 37 of trials involving thousands of participants, contrasted the effects of the injectable medications with conventional dieting.
Researchers note that people who lose weight through diet and exercise generally have a slower creep back—around 100 grams monthly—once they finish.
Understanding the Fast Regain
Nutrition scientists believe the mode of action of the drugs accounts for the heightened rebound.
These medications imitate a body's own chemical called glucagon-like peptide-1, which moderates hunger.
"Long-term administration of GLP-1 levels far above than normal could lead to the body to produce less of its endogenous hormone, and may also lessen responsiveness to its actions," noted Dr. Adam Collins, a dietetics expert.
"Withdrawal of this GLP-1 'fix' results in hunger is uncontrolled, making binge eating far more likely."
An Ongoing Disease?
Medical guidelines suggest the injections for people with obesity-related medical conditions, accompanied by prescribed lifestyle changes.
A number of clinicians contend that, given the significant potential of relapse, the treatment is often long-term.
This opinion is reinforced by drug manufacturers, who state that the results "emphasize the persistent nature of excess weight," akin to managing conditions like high blood pressure.
Patient Accounts
People who have stopped the jabs explain a intense return of appetite.
"It felt as if something activating and you become ravenous," described one woman.
This challenge is worsened if individuals have not established permanent dietary or behavioural modifications during treatment.
Growing Use
Survey data suggest that millions of people in the UK have tried these injections in the past year, with demand continuing to grow.
- Adoption is more common among females compared to men.
- The middle-aged demographic shows the highest usage rates.
- Many access the drugs through private healthcare rather than the NHS.
Finally, experts caution that while the jabs are potent agents for shedding pounds, they are not a standalone solution and long-term success hinges on integrated lifestyle management.
