Product Review
Vitamin D can be obtained through biosynthesis due to exposure to ultraviolet (UV) radiation or from dietary intake. However, Vitamin D absorption through the intestinal tract decreases as we age, and exposure to UV rays can be greatly diminished during winter months. Residents of northern climates may also have inadequate exposure to UV radiation. Therefore, supplementation has been recommended in a scientific review in order to ensure adequate intake and healthy cellular function.In addition to Vitamin Ds well-known ability to support calcium absorption, this essential vitamin plays a key role in immune function.

