Vitamin D is a fat-soluble vitamin. It is synthesized in the body mainly through The effect of ultraviolet radiation of the sun on our skin. It is also absorbed by consuming certain foods. The main role of Vitamin D3 is proper bone development and promoting the health of our skeleton*.
However, in recent years, a number of scientific studies have highlighted the important role of vitamin D not only in skeletal but also in overall health. Vitamin D helps reduce inflammation. In addition, it helps regulate and strengthen the immune system, cell growth and regulation of metabolism. Moreover, combination of Calcium and vitamin D help to reduce the loss of bone mineral in post-menopausal women. Low bone mineral density is a risk factor for osteoporotic bone fractures.
It seems that food intake alone is not enough. Few natural foods contain a sufficient amount of vitamin while fortified foods usually cannot fully meet the daily needs of Vitamin D.