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While vitamin D3 (cholecalciferol) is made in the skin when 7-dehydrocholesterol reacts with sunlight, many things affect the degree to which this biosynthesis occurs, including time of day, seasons, location, smog/pollution, clothing, shade of skin (darker skin requires more sun), and sunscreen use. Low-cholesterol diets and certain cholesterol therapies can also affect vitamin D formation. By some estimates, one billion people worldwide have vitamin D deficiency or insufficiency. Reversing deficiency and maintaining optimal serum vitamin D levels beneficially impacts biochemistry and numerous body systems; this is largely because calcitriol—the metabolic product of vitamin D—is a secosteroid hormone that targets over 200 genes in a wide variety of tissues. As the research demonstrates, vitamin D is clearly imperative for the development, growth, and maintenance of a healthy body from gestation to senescence.
Bone Health
The body needs vitamin D to absorb calcium, and the importance of vitamin D in skeletal health and bone density is
well established. Although bone density is most often associated with calcium intakes, insufficient vitamin D
negatively affects calcium absorption. Without adequate absorption, the body must take calcium from its stores in
the skeleton, which weakens existing bone and prevents the formation of strong, new bone. Clinical research shows
that taking vitamin D orally with calcium supplements can support healthy bone turnover, and adequate calcium and
vitamin D throughout life—as part of a well-balanced diet—may reduce the risk of osteoporosis.
The Expanding Roles of Vitamin D
The role of vitamin D in good health continues to expand as the knowledge of this vitamin’s effects on different
body systems grows. Research now suggests that optimal serum levels of vitamin D support normal cell
differentiation, cardiovascular health, normal immune function, good balance, healthy mood, normal fetal
development, neuronal growth and neurodevelopment, healthy glucose metabolism, musculoskeletal comfort, periodontal
health, and normal intestinal immune responses. Areas of research that have gained momentum over the past several
years concern the relationship of vitamin D deficiency or insufficiency to changes in cellular proliferation,
changes in fetal brain development, and mental health. Evidence is also mounting that vitamin D supplementation may
provide key immune support.
D2, D3, and Metabolites
As previously stated, D3 is the form of vitamin D produced in the skin. D2 (ergocalciferol) is derived from fungal
sources by activating ergosterol with ultraviolet light. It is not naturally present in the human body. After
vitamin D is formed in the skin or taken orally, it is metabolized into two different substances within the body:
calcidiol (25-hydroxyvitamin D) and calcitriol (1,25-dihydroxyvitamin D). Calcidiol is the body’s main storage form
of vitamin D, while calcitriol (made from calcidoil) is “activated” vitamin D. Although D2 and D3 are similar
biochemically, a recent study reported D3 to be approximately 87% more potent in raising and maintaining serum
calcidiol concentrations and in producing two- to threefold greater storage of vitamin D than did equimolar D2.
Take one softgel daily, or as directed by your healthcare professional.
Consult your healthcare professional prior to use. Individuals taking medication should discuss potential interactions with their healthcare professional. Do not use if tamper seal is damaged.
Organic, extra virgin olive oil and softgel (bovine gelatin,vegetable glycerin,and purified water).
Wheat, gluten, yeast, soy, dairy products, fish, shellfish, peanuts, tree nuts, egg, ingredients derived from genetically modified organisms (GMOs), artificial colors, artificial sweeteners, and artificial preservatives.
Keep closed in a cool, dry place out of reach of children.
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.