Vitamin D (Sunshine Energy) and Health: Cutaneous Synthesis, Immune Effects, and Safe Supplementation
Vitamin D is a secosteroid hormone best known for its connection to “sunshine.” When ultraviolet B (UVB) radiation reaches the skin, it converts 7-dehydrocholesterol in the epidermis into previtamin D3, which isomerizes to cholecalciferol (vitamin D3). This vitamin D3 then undergoes two hydroxylations: first in the liver via 25-hydroxylase enzymes to form 25-hydroxyvitamin D [25(OH)D],… Read More »