Jarrow Formulas Vitamin D3 provides cholecalciferol, which is more biologically active than ergocalciferol (D2). Vitamin D3 is ultimately converted to its hormonally-active form, calcitriol, in the kidneys. Calcitriol enhances dietary calcium and phosphorous absorption, stimulates the synthesis of osteocalcin (an important structural protein in bone), and supports a healthy immune response.
About Jarrow Formulas
Jarrow is now a name in the dietary supplement industry. Their full range of powders, softgels, capsules, and in-house tablets go through rigorous scientific analysis to make sure that customers get pure, high quality, and clean dietary supplements.
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