New research indicates that individuals who come off new weight-loss injections like Wegovy and Mounjaro may regain reduced body mass much more quickly than those who stop traditional diet and exercise programs.
Research printed in a prominent medical journal shows that while obese individuals can lose substantial amounts of their total mass while using the jabs, the weight is regained at an estimated rate of nearly a kilo each month once they quit.
"Individuals buying these medications need to be informed of the danger of fast rebound weight gain when the medication ends," warns expert Dr. Susan Jebb.
That rate of regain implies a return to starting weight in about a year and a half.
Comparing Therapies
The research, which looked at 37 of trials involving thousands of participants, compared the outcomes of the injectable medications with conventional dieting.
The team note that individuals who shed pounds through lifestyle changes alone typically have a more gradual creep back—approximately 100 grams monthly—after stopping.
Explaining the Rapid Regain
Experts propose the way of the injections is key to understanding the amplified weight return.
GLP-1 drugs copy a natural hormone called glucagon-like peptide-1, which helps regulate appetite.
"Long-term administration of the hormone levels far above than normal could lead to the body to generate a reduced amount of its own natural GLP-1, and could diminish sensitivity to its effects," explained Dr. Adam Collins, a dietetics researcher.
"Stopping of this medication leads to hunger is unsuppressed, making overeating a significant risk."
A Lifelong Disease?
Medical guidelines recommend the injections for individuals with weight-linked health risks, accompanied by recommended lifestyle changes.
Professionals contend that, due to the likelihood of relapse, the therapy should be considered ongoing.
This view is supported by pharmaceutical companies, who note that the findings "emphasize the chronic nature of excess weight," comparing it to managing diseases like hypertension.
Patient Accounts
People who have come off the jabs describe a intense resurgence of cravings.
"I experienced a switch flipping and I was suddenly starving," recalled an individual.
This challenge is exacerbated if users have not developed permanent lifestyle or habit modifications during treatment.
Widespread Interest
Figures show that a significant number of adults in the UK have used these injections in the last 12 months, with desire being substantial.
- Adoption is higher among females than men.
- The middle-aged age group shows the highest usage rates.
- A large proportion access the drugs through private healthcare rather than public health services.
Ultimately, clinicians stress that while the jabs are potent tools for weight loss, they are not a permanent fix and long-term success hinges on integrated behavioural changes.
