New research indicates that patients who discontinue new weight-loss injections like semaglutide or tirzepatide may regain reduced body mass much more quickly than those who end conventional lifestyle programs.
Research printed in a prominent health publication shows that while obese individuals frequently drop about a fifth of their total mass while on the medication, the weight is regained at an average rate of nearly a kilo each month once they quit.
"Users purchasing such treatments should be cognizant of the risk of fast rebound weight gain when the medication is stopped," cautioned lead investigator Dr. Susan Jebb.
This pace of regain means a return to starting mass in about 18 months.
Weighing Approaches
The study, which reviewed dozens of studies involving over 9,000 of patients, contrasted the results of these new drugs with older methods.
Scientists note that individuals who shed pounds through lifestyle changes alone typically have a more gradual creep back—approximately 100 grams monthly—after stopping.
Explaining the Quick Rebound
Experts believe the mechanism of the injections explains the heightened weight return.
The injections imitate a natural hormone called glucagon-like peptide-1, which controls appetite.
"Sustained high doses of the hormone levels several times higher than normal could lead to the body to generate a reduced amount of its own natural hormone, and could lessen sensitivity to its actions," explained Dr. Adam Collins, a dietetics expert.
"Stopping of this medication means hunger is unsuppressed, making overeating a significant risk."
An Ongoing Issue?
The NHS advise the injections for people with weight-linked health risks, accompanied by prescribed diet and exercise modifications.
Many experts contend that, due to the likelihood of weight regain, the therapy might need to be long-term.
This view is supported by drug manufacturers, who note that the findings "emphasize the chronic character of obesity," similar to managing diseases like hypertension.
Patient Testimonies
People who have stopped the medication explain a sudden return of cravings.
"It was like something activating and I was suddenly starving," described an individual.
This difficulty is worsened if individuals have not established lasting lifestyle or habit modifications during therapy.
Significant Adoption
Recent estimates show that millions of adults in the UK have tried these injections in the last 12 months, with interest being substantial.
- Use is higher among females compared to men.
- The 40s and 50s demographic shows the highest level of interest.
- A large proportion access the drugs through private prescriptions rather than the NHS.
In conclusion, clinicians stress that while these medications are powerful agents for shedding pounds, they are not a permanent cure and long-term success relies on combined behavioural changes.
