Ergocalciferol Vitamin D2
Vitamin D Sym: calciferol, cholecarciferol, D, viosterol, vitamin D Strictly speaking, vitamin D is not a vitamin at all because our bodies can manufacture it using sunlight. Ultraviolet light converts precursors into provitamin D3. First the liver, then the kidneys take D3, and convert it into what we call vitamin D The classic role of vitamin D is to help strengthen bone by making calcium and phosphorus more available by increasing absorption. Although calcium usually gets top billing, recent studies have shown vitamin D should share credit for keeping bones strong. Symptoms of deficiency: Rickets, osteomalacia (softening bones)in adults, people living above 42 degrees latitude are most likely to be deficient do to lack of sunlight during winter months.