Fresh analysis reveals that individuals who discontinue popular GLP-1 drugs like Mounjaro or Wegovy may regain reduced body mass at a significantly accelerated pace than those who halt conventional lifestyle regimens.
Research printed in a prominent medical journal shows that while obese people can lose about a fifth of their total mass while using the jabs, the weight is regained at an estimated rate of nearly a kilo each month after stopping.
"People purchasing such drugs must be aware of the risk of rapid rebound weight gain when the medication concludes," cautioned researcher Dr. Susan Jebb.
That rate of regain suggests a reversion to original weight in about 18 months.
Analyzing Treatments
The analysis, which reviewed 37 of trials involving over 9,000 of participants, contrasted the outcomes of GLP-1 agonists with conventional dieting.
Researchers point out that individuals who shed pounds through dieting generally see a slower weight regain—around 100 grams monthly—after stopping.
The Reason for the Rapid Regain
Nutrition scientists propose the mode of action of the drugs is key to understanding the amplified regain.
These medications mimic a body's own chemical called glucagon-like peptide-1, which controls hunger.
"Artificially providing the hormone concentrations several times higher than the body's typical production may cause the system to generate a reduced amount of its endogenous GLP-1, and could diminish sensitivity to its effects," said Dr. Adam Collins, a dietetics expert.
"Discontinuation of this medication results in appetite is uncontrolled, making excessive eating far more likely."
An Ongoing Issue?
The NHS suggest the injections for individuals with weight-linked health risks, accompanied by recommended lifestyle changes.
Professionals contend that, considering the likelihood of relapse, the therapy should be considered life-long.
This perspective is reinforced by pharmaceutical companies, who say that the results "underscore the long-term nature of excess weight," akin to managing diseases like diabetes.
Patient Experiences
Users who have come off the jabs describe a sudden return of hunger.
"I experienced something that goes on and I was suddenly starving," said an individual.
The struggle is exacerbated if individuals have not adopted lasting lifestyle or habit modifications during treatment.
Widespread Interest
Recent estimates show that a significant number of adults in the UK have tried weight-loss jabs in the last 12 months, with interest being substantial.
- Use is more common among women than males.
- The middle-aged age group shows the highest level of interest.
- Many obtain the drugs through private healthcare rather than the NHS.
Finally, clinicians emphasize that while these medications are powerful agents for shedding pounds, they are not a magic cure and maintained weight loss likely depends on integrated lifestyle management.
