Fresh analysis reveals that individuals who come off new slimming jabs like semaglutide or tirzepatide tend to recover shed pounds much more quickly than those who end traditional diet and exercise regimens.
Research printed in a leading medical journal demonstrates that while obese individuals frequently drop about a fifth of their body weight while on the medication, the weight comes back at an estimated rate of 0.8 kg per month after stopping.
"Individuals purchasing these treatments must be informed of the potential of fast rebound weight gain when the treatment ends," stated researcher Dr. Susan Jebb.
Such speed of regain implies a return to original weight in about a year and a half.
Weighing Approaches
The analysis, which reviewed dozens of studies involving over 9,000 of participants, contrasted the effects of these new drugs with other pills.
Researchers point out that people who lose weight through diet and exercise typically see a slower creep back—approximately 0.1 kg a month—post-intervention.
Understanding the Fast Rebound
Doctors propose the mechanism of the drugs explains the accelerated weight return.
These medications mimic a body's own chemical called GLP-1, which moderates feelings of fullness.
"Sustained high doses of the hormone levels several times higher than normal may cause the system to generate a reduced amount of its own natural hormone, and could lessen responsiveness to its effects," said Dr. Adam Collins, a dietetics specialist.
"Discontinuation of this medication means hunger is unsuppressed, making binge eating much more probable."
A Chronic Issue?
Medical guidelines advise the jabs for people with weight-linked health risks, alongside prescribed lifestyle changes.
Professionals argue that, given the significant potential of weight regain, the treatment is often life-long.
This perspective is reinforced by drug manufacturers, who say that the results "highlight the long-term character of obesity," comparing it to managing diseases like hypertension.
Patient Accounts
Users who have come off the jabs describe a sudden return of hunger.
"It was like a switch activating and you're instantly ravenous," said one woman.
This challenge is compounded if individuals have not established permanent lifestyle or habit changes during treatment.
Widespread Use
Survey data suggest that millions of adults in the UK have tried these injections in the past year, with demand continuing to grow.
- Adoption is higher among women compared to men.
- The middle-aged age group shows the greatest level of interest.
- A large proportion obtain the medications through private prescriptions rather than public health services.
Ultimately, experts stress that while these medications are powerful tools for shedding pounds, they are not a standalone fix and lasting health benefits likely depends on ongoing lifestyle management.