Barceló A, Morell-Garcia D, Ribot C, et al. - Researchers conducted the study for examining the inter-relationship between serum 25(OH)D levels and paternal and maternal vitamin D status in a sample of snoring children. They chose 137 participants whose serum 25(OH)D levels had been measured and who had undergone overnight polysomnography evaluation. In addition, serum glucose, lipids, liver enzymes, parathyroid hormone, insulin, and glycated hemoglobin were measured. Vitamin D insufficiency (< 30 ng/mL) and deficiency (< 20 ng/mL) were observed in 40.9 and 17.5% of children, respectively. Vitamin D family patterns may be useful for the early identification of children at risk of metabolic and/or sleep disturbances, as well as when considering strategies to improve vitamin D status.