VITAMIN D3 PLAYS AN INTEGRAL ROLE IN CALCIUM
ABSORPTION AND BONE HEALTH

- Immunomodulatory
- Supports healthy immune function
- Supports healthy skin
- Cytokine modulator
- Supports healthy cartilage and joints
- Supports healthy vascular tone
- Inhibits lipid peroxidation

For many people the principal source of vitamin D is through exposure of the
skin to sunlight. Cholecalciferol, also known as vitamin D3, is formed from
7-dehydrocholesterol in the skin after exposure to UV light. Unfortunately, due to
risk of skin cancer, many individuals are limiting sunlight exposure or using liberal
amounts of sun protective factors (SPF) in sun tanning lotions, both of which
limit vitamin D production in the skin. In the body cholecalciferol is hydroxylated
to calcifediol in the liver and then to calcitriol in the kidneys, which are the active
forms of vitamin D. The active forms of vitamin D work with parathyroid hormone
and calcitonin to regulate serum calcium and phosphorus concentrations.