Fresh analysis reveals that patients who discontinue blockbuster weight-loss injections like semaglutide or tirzepatide tend to recover shed pounds much more quickly than those who stop conventional lifestyle regimens.
Findings released in a major health publication shows that while overweight people can lose substantial amounts of their body weight while undergoing treatment, the weight comes back at an estimated rate of 0.8 kg per month once they quit.
"People using such medications should be cognizant of the potential of quick weight regain when the treatment ends," cautioned researcher Dr. Susan Jebb.
That rate of recovery implies a reversion to starting weight within about a year and a half.
Comparing Approaches
The research, which examined 37 of trials involving thousands of participants, compared the outcomes of GLP-1 agonists with older methods.
The team point out that people who lose weight through lifestyle changes alone typically see a less rapid creep back—perhaps 0.1 kg a month—post-intervention.
Understanding the Rapid Rebound
Experts believe the mode of action of the drugs is key to understanding the heightened rebound.
The injections mimic a body's own chemical called GLP-1, which moderates hunger.
"Artificially providing the hormone concentrations several times higher than normal could lead to the system to produce less of its endogenous GLP-1, and could lessen responsiveness to its actions," explained Dr. Adam Collins, a dietetics expert.
"Discontinuation of this hormone supplement leads to appetite is no longer kept in check, making binge eating a significant risk."
A Chronic Issue?
The NHS suggest the jabs for people with weight-linked health risks, accompanied by prescribed lifestyle changes.
A number of clinicians contend that, considering the significant potential of weight regain, the therapy might need to be long-term.
This perspective is reinforced by drug manufacturers, who state that the findings "underscore the persistent nature of obesity," comparing it to managing diseases like diabetes.
User Experiences
People who have stopped the jabs explain a intense resurgence of cravings.
"It was like a switch activating and you're instantly ravenous," described an individual.
This challenge is compounded if patients have not adopted lasting dietary or behavioural changes during therapy.
Widespread Interest
Figures show that millions of people in the UK have used these injections in the past year, with demand continuing to grow.
- Use is greater among females compared to men.
- The 40s and 50s age group shows the highest usage rates.
- A large proportion obtain the medications through private prescriptions rather than the NHS.
In conclusion, experts emphasize that while these medications are powerful tools for shedding pounds, they are not a permanent fix and maintained weight loss likely depends on integrated behavioural changes.
