Fresh analysis suggests that people who discontinue new weight-loss injections like semaglutide or tirzepatide may regain lost weight at a significantly accelerated pace than those who stop traditional diet and exercise regimens.
Findings released in a prominent medical journal shows that while overweight people can lose a large proportion of their total mass while using the jabs, the mass returns at an estimated rate of nearly a kilo each month upon discontinuation.
"Users purchasing these treatments need to be cognizant of the risk of fast weight regain when the therapy concludes," cautioned lead investigator Dr. Susan Jebb.
Such speed of recovery suggests a return to pre-treatment weight in about 18 months.
Comparing Therapies
The analysis, which examined dozens of trials involving thousands of patients, contrasted the outcomes of the injectable medications with conventional dieting.
Scientists note that people who lose weight through diet and exercise generally experience a less rapid weight regain—around 0.1 kg a month—after stopping.
Explaining the Fast Rebound
Doctors believe the way of the jabs is key to understanding the amplified rebound.
The injections copy a body's own chemical called GLP-1, which helps regulate hunger.
"Long-term administration of the hormone concentrations far above than the body's typical production may cause the system to produce less of its own natural GLP-1, and may also diminish sensitivity to its actions," noted Dr. Adam Collins, a dietetics researcher.
"Withdrawal of this GLP-1 'fix' leads to appetite is uncontrolled, making excessive eating a significant risk."
A Lifelong Disease?
The NHS advise the injections for people with weight-linked health risks, alongside recommended diet and exercise modifications.
Professionals contend that, given the likelihood of relapse, the therapy is often long-term.
This view is supported by drug manufacturers, who say that the results "underscore the long-term nature of excess weight," similar to managing conditions like high blood pressure.
User Accounts
People who have stopped the medication report a sudden resurgence of cravings.
"It felt as if a switch activating and I was suddenly ravenous," described a patient.
The struggle is compounded if individuals have not adopted lasting dietary or behavioural modifications during treatment.
Growing Interest
Recent estimates show that a significant number of people in the UK have used these injections in the last 12 months, with desire continuing to grow.
- Adoption is higher among females than males.
- The middle-aged demographic shows the highest level of interest.
- Many access the medications through private prescriptions rather than the NHS.
In conclusion, experts caution that while the jabs are powerful agents for weight loss, they are not a magic solution and lasting health benefits hinges on combined lifestyle management.
