Total 25-OH vitamin D concentrations in Chinese, Malays and Indians. Ann Lab Med. 2013 Mar;33(2):156-8. doi: 10.3343/alm.2013.33.2.156 Hawkins R. PDF is attached at the bottom of this page See also VitaminDWiki Overview Dark Skin and Vitamin D Low Vitamin D with dark skin, even if live closer to equator and higher altitude – Feb 2013 Overview Middle East and vitamin D Slightly North of the Equator
