Estimation of the dietary requirement for vitamin D in adolescents aged 14-18 y: a dose-response, double-blind, randomized placebo-controlled trial.
Taryn J SmithLaura TripkovicCamilla Trab DamsgaardChristian MølgaardChristian RitzSaskia L Wilson-BarnesKirsten G DowlingÁine HennessyKevin D CashmanMairead E KielySusan A Lanham-NewKathryn H HartPublished in: The American journal of clinical nutrition (2016)
Vitamin D intakes between 10 and ∼30 μg/d are required by white adolescents during winter to maintain serum 25(OH)D concentrations >25-50 nmol/L, depending on the serum 25(OH)D threshold chosen. This trial was registered at clinicaltrials.gov as NCT02150122 and as International Standard Randomized Controlled Trial Number ISRCTN40736890.