Vitamin D content in Alaskan Arctic zooplankton, fishes, and marine mammals

Abstract 10.1002/zoo.10104.abs We postulated that dietary ingestion of vitamin D may be used by some Alaskan Arctic marine mammal species in addition to, or instead of, cutaneous production to meet nutritional requirements. Zooplankton (n=5) sampled near Kaktovik, Alaska, contained no measurable vitamin D2 or D3, but did contain provitamin D (7-dehydrocholesterol), the cutaneous precursor for […]