Vitamin D3, 400 IU


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).
Product: Vitamin D3, 400 IU
Brand: Jarrow Formulas (More Products)
Size: 100 SFTGELS
Dosage: 1 softgel daily
Retail: $5.95
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1 Customer Reviews


Quality D3
by Sue

If you want to be assured that you are taking the best D3 on the market, then Jarrow is your choice. I have been taking this product for several months and each time I pick up the bottle, I feel convinced that I'm doing the best for my calcium and phosphorus intakes. I am taking this product in tandem with Jarrow's Calcium and believe that the synergistic effects are well-worth the time and money. Any woman concerned with post-menopausal bone loss should consider Jarrow's products.