Background: Double burden of malnutrition (DBM) is the co-existence of overweight/obesity and undernutrition. Rising prevalence rates of childhood overweight/obesity in Nigeria have been reported, whilst undernutrition continues to be prevalent. This study aimed to estimate the prevalence and distribution of underweight, stunting, thinness, overweight/obesity, and the DBM among school-aged children and adolescents in Gombe and Osun States in Nigeria. Methods: This was a community-based cross-sectional study carried out in Osun and Gombe States in 2019...