Yes, people with darker skin is at higher risk of vitamin D deficiency in northern territories. "Vitamin D synthesis is highly dependent on the concentration o

Yes, people with darker skin is at higher risk of vitamin D deficiency in northern territories. "Vitamin D synthesis is highly dependent on the concentration of melanin in the skin as melanin absorbs and scatters UVR-B, resulting in a less efficient conversion of 7-dehydrocholesterol to previtamin D3[3]. Therefore, dark-skinned individuals will experience slower vitamin D synthesis than light-skinned ones. " https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4067096/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4067096/