Fresh analysis suggests that patients who come off new weight-loss injections like Wegovy and Mounjaro tend to recover lost weight much more quickly than those who stop traditional lifestyle plans.
Research printed in a major medical journal demonstrates that while obese individuals frequently drop substantial amounts of their body weight while on the medication, the mass is regained at an estimated rate of 0.8 kg per month upon discontinuation.
"Individuals using such drugs should be informed of the danger of fast weight regain when the medication ends," warns researcher Dr. Susan Jebb.
This pace of regain suggests a return to original weight within about a year and a half.
Weighing Therapies
The study, which examined dozens of studies involving thousands of patients, contrasted the effects of these new drugs with conventional dieting.
Researchers point out that individuals who lose weight through lifestyle changes alone typically have a slower creep back—approximately 100 grams monthly—once they finish.
The Reason for the Fast Regain
Nutrition scientists suggest the way of the jabs explains the amplified regain.
The injections copy a body's own chemical called GLP-1, which helps regulate appetite.
"Artificially providing GLP-1 concentrations far above than the body's typical production might result in the body to generate a reduced amount of its endogenous GLP-1, and could diminish sensitivity to its actions," noted Dr. Adam Collins, a dietetics researcher.
"Stopping of this hormone supplement leads to hunger is unsuppressed, making excessive eating a significant risk."
An Ongoing Disease?
Medical guidelines suggest the jabs for people with weight-linked health risks, accompanied by recommended lifestyle changes.
Professionals argue that, given the significant potential of relapse, the treatment should be considered ongoing.
This perspective is echoed by drug manufacturers, who say that the results "underscore the persistent nature of obesity," similar to managing diseases like hypertension.
User Accounts
Individuals who have come off the jabs explain a sudden resurgence of appetite.
"It felt as if something flipping and I was suddenly extremely hungry," described one woman.
This difficulty is worsened if patients have not established lasting dietary or behavioural modifications during treatment.
Widespread Adoption
Recent estimates show that a significant number of adults in the UK have used weight-loss jabs in the last 12 months, with demand being substantial.
- Adoption is greater among females than males.
- The middle-aged age group shows the highest level of interest.
- A large proportion obtain the drugs through private prescriptions rather than public health services.
Ultimately, clinicians caution that while GLP-1 drugs are potent tools for weight loss, they are not a permanent solution and maintained weight loss likely depends on integrated lifestyle support.
