Paediatric obesity has become a public health problem worldwide.From 1975 to 2016, the global age-standardised prevalence of paediatric obesity has increased from 0.7% to 5.6% in girls and from 0.9% to 7.8% in boys. 1 Physical inactivity, prolonged sedentary time, unhealthy eating patterns, and an imbalanced diet containing high calories were the main drivers for the increase. 2 In children, obesity can increase the risk of various comorbidities, including type 2 diabetes, fatty liver disease, and obstructive sleep apnoea. 3,4 Its harmful effects can also persist into adulthood. 5 Adults who were obese during childhood were at higher risk of developing cardiometabolic diseases and cancer. 6,7 Previous studies have also indicated a possible link between obesity and short telomere length. [8][9][10] Telomeres are tandem repeats located at the ends of chromosomes that protect genomic stability and preserve genomic information. 11 In humans, telomeres are composed