3 Review(s)

Vitamin D3 is created when the body is exposed to sunlight, however, higher uses of of sunscreen, developed cubic culture, reduced outdoor exposure and other factors such as age, genetics, dietary deficiencies and medical conditions have lead vitamin D to become one of the most common deficiency in the world. According to Mayo Clinic, 25% to 50% or more of the general population may be vitamin D deficient, as most studies show that most people do not get the recommended amount from sunlight alone.Vitamin D from dietary intake or sun exposure requires two activation steps in the body. Calcium which is of vital importance is regulated when vitamin D3 is first activated in the liver, while the second activation occurs in the kidneys. Vitamin D receptors being present throughout the body, so the second activation step also takes place in local tissues.