24-h urinary sodium to potassium ratio and its association with obesity in children and adolescents

There are epidemiologic studies indicating a positive correlation between high sodium and low potassium intake and body mass index. Therefore, this study was conducted in a cross-sectional sample of Iranian children and adolescents to evaluate the link between 24-h urinary Na:K ratio and risk of obesity. In this cross-sectional study, 374 participants aged 11–18 years were included. One 24-h urine sample was collected by each participant to...