Fresh analysis suggests that patients who come off blockbuster weight-loss injections like semaglutide or tirzepatide can put back on lost weight much more quickly than those who halt traditional diet and exercise programs.
Research printed in a prominent medical journal demonstrates that while obese individuals frequently drop a large proportion of their body weight while using the jabs, the mass comes back at an estimated rate of nearly a kilo each month upon discontinuation.
"Individuals using these medications should be cognizant of the potential of quick rebound weight gain when the therapy concludes," stated lead investigator Dr. Susan Jebb.
That rate of recovery implies a return to starting weight within about one and a half years.
Comparing Approaches
The research, which reviewed 37 of studies involving thousands of participants, compared the outcomes of the injectable medications with older methods.
Researchers note that individuals who shed pounds through dieting generally have a slower creep back—approximately 100 grams monthly—post-intervention.
Understanding the Fast Regain
Doctors believe the mechanism of the injections explains the heightened regain.
These medications imitate a body's own chemical called GLP-1, which moderates appetite.
"Long-term administration of the hormone concentrations several times higher than normal may cause the body to generate a reduced amount of its endogenous hormone, and may also diminish sensitivity to its actions," noted Dr. Adam Collins, a dietetics specialist.
"Withdrawal of this GLP-1 'fix' leads to appetite is uncontrolled, making overeating far more likely."
An Ongoing Disease?
Medical guidelines recommend the jabs for individuals with obesity-related health risks, accompanied by prescribed lifestyle changes.
Many experts say that, given the likelihood of weight regain, the therapy might need to be long-term.
This perspective is reinforced by drug manufacturers, who say that the results "emphasize the chronic nature of excess weight," similar to managing diseases like diabetes.
User Accounts
People who have discontinued the medication report a sudden resurgence of appetite.
"I experienced something flipping and I was suddenly ravenous," recalled a patient.
This challenge is worsened if users have not established sustainable dietary or behavioural changes during treatment.
Widespread Adoption
Figures show that a significant number of people in the UK have tried these injections in the past year, with interest being substantial.
- Use is greater among women than men.
- The middle-aged demographic shows the highest level of interest.
- A large proportion obtain the medications through private prescriptions rather than the NHS.
In conclusion, experts stress that while these medications are effective tools for shedding pounds, they are not a permanent cure and maintained weight loss likely depends on integrated behavioural changes.
