Fresh analysis reveals that individuals who come off blockbuster GLP-1 drugs like semaglutide or tirzepatide tend to recover shed pounds far faster than those who end conventional diet and exercise programs.
Findings released in a major medical journal demonstrates that while obese people frequently drop substantial amounts of their total mass while on the medication, the weight comes back at an average rate of nearly a kilo each month once they quit.
"Individuals buying such medications need to be cognizant of the danger of rapid rebound weight gain when the treatment is stopped," cautioned lead investigator Dr. Susan Jebb.
That rate of recovery suggests a reversion to pre-treatment weight within about a year and a half.
Analyzing Treatments
The research, which reviewed 37 of trials involving over 9,000 of participants, contrasted the results of these new drugs with older methods.
Researchers note that people who shed pounds through dieting typically experience a more gradual weight regain—perhaps 100 grams monthly—after stopping.
The Reason for the Quick Regain
Experts propose the way of the jabs is key to understanding the accelerated regain.
GLP-1 drugs imitate a natural hormone called glucagon-like peptide-1, which controls hunger.
"Long-term administration of the hormone concentrations far above than the body's typical production might result in the body to generate a reduced amount of its own natural hormone, and could lessen responsiveness to its effects," explained Dr. Adam Collins, a dietetics expert.
"Stopping of this hormone supplement leads to hunger is unsuppressed, making overeating much more probable."
A Lifelong Disease?
The NHS suggest the jabs for people with weight-linked health risks, alongside prescribed lifestyle changes.
Professionals argue that, given the significant potential of weight regain, the therapy is often long-term.
This opinion is reinforced by pharmaceutical companies, who say that the findings "emphasize the persistent nature of obesity," comparing it to managing diseases like hypertension.
User Testimonies
People who have stopped the medication describe a sudden return of cravings.
"I experienced a switch activating and you're instantly ravenous," said a patient.
This difficulty is worsened if individuals have not established lasting dietary or behavioural modifications during treatment.
Growing Adoption
Recent estimates suggest that a significant number of adults in the UK have used these injections in the last 12 months, with desire remaining high.
- Adoption is greater among women compared to men.
- The middle-aged demographic shows the highest level of interest.
- A large proportion obtain the medications through private healthcare rather than the NHS.
Ultimately, researchers caution that while GLP-1 drugs are effective agents for shedding pounds, they are not a permanent solution and long-term success likely depends on ongoing behavioural changes.
