Weight Quickly Returns After Stopping GLP-1 Weight-Loss Injections, Study Finds

People who stop taking weight-loss injections regain all the weight they lost in under two years, according to a major new study. The analysis, led by researchers at the University of Oxford and published in the BMJ, reviewed 37 studies involving more than 9,300 participants. It found that people who discontinued GLP-1 agonist medications regained weight at an average rate of 0.4kg per month, returning to their original weight within about 1.7 years. Weight regain occurred almost four times faster than in behavioural weight-loss programmes based on diet and exercise. Researchers also found that improvements in blood pressure and cholesterol reversed within roughly 1.4 years of stopping treatment. Experts stress this does not reflect a failure of the drugs, but highlights obesity as a chronic condition requiring long-term management. Organisations including Diabetes UK and the Obesity Health Alliance emphasised the need for ongoing lifestyle support alongside medication to sustain health benefits.