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Vitamin D3, 100 Softgels, 400 IU, From Jarrow
Regular: $5.99You Save: 47%Online Sale Price: $3.18, 3 for $9.45, 6 for $18.78
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Jarrow Formulas Vitamin D3 (cholecalciferol) is from purified fish liver oil and is free of Vitamin A. Fat-soluble Vitamin D3 is converted by the kidneys into the hormone calcitriol, the activated form of Vitamin D3 which affects a variety of target tissues including bone, intestine, muscle, brain, skin and immune systems cells. Calcitriol enhances calcium and phosphorous absorption and stimulates the synthesis of osteocalcin , an important structural protein in bone. Also, calcitriol is involved in proper cell differentiation (changing of cell function).