Comment on

• Estimation of the dietary requirement for vitamin D in adolescents aged 14-18 y: a dose-response, double-blind, randomized placebo-controlled trial.

  Smith TJ, Tripkovic L, Damsgaard CT, Mølgaard C, Ritz C, Wilson-Barnes SL, Dowling KG, Hennessy Á, Cashman KD, Kiely M, Lanham-New SA, Hart KH. Smith TJ, et al. Am J Clin Nutr. 2016 Nov;104(5):1301-1309. doi: 10.3945/ajcn.116.138065. Epub 2016 Sep 21. Am J Clin Nutr. 2016. PMID: 27655438 Clinical Trial.
• Estimation of the dietary requirement for vitamin D in white children aged 4-8 y: a randomized, controlled, dose-response trial.

  Mortensen C, Damsgaard CT, Hauger H, Ritz C, Lanham-New SA, Smith TJ, Hennessy Á, Dowling K, Cashman KD, Kiely M, Mølgaard C. Mortensen C, et al. Am J Clin Nutr. 2016 Nov;104(5):1310-1317. doi: 10.3945/ajcn.116.136697. Epub 2016 Oct 12. Am J Clin Nutr. 2016. PMID: 27733403 Clinical Trial.