New research indicates that people who come off blockbuster GLP-1 drugs like semaglutide or tirzepatide may regain lost weight at a significantly accelerated pace than those who stop traditional lifestyle programs.
Research printed in a prominent medical journal demonstrates that while obese people frequently drop a large proportion of their body weight while on the medication, the weight comes back at an estimated rate of 0.8 kg per month once they quit.
"Individuals using these medications should be aware of the risk of fast weight regain when the therapy is stopped," warns lead investigator Dr. Susan Jebb.
This pace of regain suggests a reversion to starting mass within about a year and a half.
Weighing Approaches
The research, which looked at dozens of studies involving over 9,000 of patients, contrasted the results of the injectable medications with conventional dieting.
The team emphasize that individuals who lose weight through diet and exercise generally experience a less rapid weight regain—around 0.1 kg a month—post-intervention.
Understanding the Quick Regain
Doctors believe the mechanism of the jabs accounts for the amplified regain.
These medications imitate a natural hormone called GLP-1, which controls hunger.
"Long-term administration of GLP-1 levels several times higher than normal might result in the system to produce less of its endogenous GLP-1, and could diminish responsiveness to its effects," noted Dr. Adam Collins, a nutrition specialist.
"Withdrawal of this GLP-1 'fix' leads to hunger is uncontrolled, making overeating far more likely."
An Ongoing Disease?
The NHS advise the jabs for individuals with weight-linked medical conditions, accompanied by prescribed lifestyle changes.
Many experts contend that, considering the significant potential of weight regain, the treatment should be considered ongoing.
This view is reinforced by pharmaceutical companies, who state that the results "underscore the chronic character of obesity," comparing it to managing diseases like hypertension.
User Testimonies
Users who have stopped the jabs describe a sudden resurgence of hunger.
"It felt as if a trigger activating and you're instantly ravenous," recalled one woman.
The struggle is worsened if patients have not adopted lasting lifestyle or habit modifications during treatment.
Growing Use
Recent estimates indicate that a significant number of adults in the UK have tried these injections in the last 12 months, with interest being substantial.
- Use is more common among females than men.
- The middle-aged age group shows the greatest level of interest.
- Many obtain the medications through private prescriptions rather than the NHS.
In conclusion, researchers stress that while the jabs are powerful agents for shedding pounds, they are not a magic solution and long-term success likely depends on ongoing behavioural management.
