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<p><strong>Jarrow Formulas<sup>®</sup> Vitamin D</strong><strong>3</strong> provides cholecalciferol, which is the form produced by the (human) skin in response to UVB exposure (sunlight) and may also improve vitamin D status better than equivalent amounts of ergocalciferol (D<sub>2</sub>).* Vitamin D<sub>3</sub> is ultimately converted to its hormonally-active form, calcitriol, in the body as needed. Calcitriol enhances dietary calcium and phosphorous absorption, supports the production of osteocalcin (an important structural protein in bone), and supports a healthy immune response.*</p>

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