Vitamin D3 (as cholecalciferol) is a fat-soluble vitamin that's
naturally present in very few food sources. It has many functions in the
body from contributing to bone health to supporting immune function.
NutraBio Vitamin D3 is the same form of Vitamin D3 the body manufactures
when skin is exposed to ultraviolet (UV) sunlight. Vitamin D3 may be
more than three times as effective than other forms of Vitamin D3 in
raising concentrations in the bloodstream and maintaining those levels
for a longer time.*
*These statements have not been evaluated by The Food and
Drug Administration. This product is not intended to diagnose, treat, cure, or
prevent any disease.