The scientists significantly reduced nasal inflammation and improved the sense of smell in mice by using a vitamin D nasal ...

This affects their bioequivalence (how equally they act in the body). Comparatively, the breakdown of vitamin D3 produces more calcidiol and, in turn, calcitriol than vitamin D2. Because of this, ...

Magnesium is needed to convert vitamin D into its usable form, called calcitriol. Without this conversion, vitamin D cannot perform its functions, including regulating calcium and phosphorus ...