Vitamin D3 promotes the intestinal absorption of calcium and other minerals such as iron, magnesium, phosphate and zinc.The most important source of vitamin D3 is sunlight.
The skin synthesizes vitamin D3 when it is exposed to sunlight. Extensive indoor living and a strict vegetarian diet are the two main reasons of vitamin D3 deficiency. Vitamin D3 promotes bone health by increasing the calcium absorption. It also helps in boosting the functions of the immune system, regulates the blood pressure within the normal range and improves cognitive functions.
Vitamin D3 plays an important role in prenatal care as well. A deficiency of vitamin D3 during pregnancy can lead to bone problems. Regular intake of vitamin D3 in the form of supplements has been shown to maintain ideal body weight. Caution: Vitamin D levels should be checked before taking this supplement.