New research reveals that individuals who come off blockbuster weight-loss injections like semaglutide or tirzepatide can put back on reduced body mass far faster than those who stop traditional lifestyle programs.
Findings released in a major health publication shows that while overweight people frequently drop substantial amounts of their body weight while on the medication, the mass returns at an average rate of nearly a kilo each month after stopping.
"People buying such treatments must be aware of the potential of fast weight regain when the treatment concludes," cautioned lead investigator Dr. Susan Jebb.
Such speed of regain means a return to pre-treatment mass within about 18 months.
Comparing Treatments
The analysis, which examined dozens of trials involving over 9,000 of participants, compared the results of the injectable medications with other pills.
Scientists emphasize that individuals who shed pounds through dieting typically see a less rapid weight regain—around 0.1 kg a month—after stopping.
Explaining the Quick Rebound
Doctors propose the mechanism of the injections is key to understanding the heightened regain.
These medications copy a body's own chemical called glucagon-like peptide-1, which controls hunger.
"Sustained high doses of the hormone levels several times higher than the body's typical production might result in the body to generate a reduced amount of its own natural hormone, and may also reduce responsiveness to its actions," noted Dr. Adam Collins, a dietetics researcher.
"Stopping of this GLP-1 'fix' results in hunger is unsuppressed, making excessive eating much more probable."
A Chronic Disease?
Health authorities suggest the injections for people with weight-linked health risks, accompanied by prescribed diet and exercise modifications.
A number of clinicians contend that, considering the significant potential of weight regain, the therapy is often long-term.
This opinion is echoed by pharmaceutical companies, who state that the findings "emphasize the persistent character of excess weight," akin to managing diseases like hypertension.
User Experiences
Individuals who have stopped the medication explain a powerful resurgence of hunger.
"It was like something flipping and you become starving," recalled a patient.
This difficulty is worsened if individuals have not established permanent dietary or behavioural modifications during treatment.
Widespread Interest
Recent estimates suggest that a significant number of people in the UK have used these injections in the past year, with demand being substantial.
- Use is higher among women than men.
- The 40s and 50s demographic shows the highest level of interest.
- A large proportion access the drugs through private healthcare rather than the NHS.
Finally, clinicians stress that while the jabs are powerful agents for weight loss, they are not a magic cure and lasting health benefits relies on ongoing lifestyle support.
