Christy Chui – How do I get more vitamin D?

Christy Chui, a registered dietician in Australia, gives us an overall picture about Vitamin D. Vitamin D is a fat-soluble vitamin that is naturally present in very few foods, and available as a dietary supplement. It is also produced endogenously when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis. Vitamin D promotes calcium absorption in the gut and maintains adequate serum calcium and phosphate concentrations to enable normal mineralization of bone and to prevent hypocalcemic tetany. It is also needed for bone growth and bone remodeling by osteoblasts and osteoclasts.