Jarrow Formulas, Vitamin D3, Cholecalciferol, 1,000 IU
- Vitamin D3 helps support immune health
- Helps regulate calcium and phosphorus levels needed for healthy bones and teeth
- Helps support bone and cardiovascular health
Jarrow Formulas ® Vitamin D3 provides cholecalciferol, which is biologically more active than ergocalciferol (D2). Vitamin D3 is eventually converted to its hormonally active form, calcitriol, in the kidney. Calcitriol improves dietary absorption of calcium and phosphorus, stimulates the synthesis of osteocalcin (an important structural protein in bone), and supports a healthy immune response.