Jarrow Formulas Vitamin D3 5000 IU (125 mcg) - High Potency Vitamin D Supplement for Immune Support, Bone Health & Energy - Ideal for Adults, Seniors & Low Sunlight Exposure

• Supports A Healthy Immune Response*

Jarrow Formulas® Vitamin D3 (cholecalciferol) may help improve vitamin D status better than equivalent amounts of ergocalciferol (D2).* D3 is also the form produced by skin with UVB exposure (sunlight). Vitamin D3 is converted to its hormonally-active form, calcitriol, which enhances dietary calcium and phosphorous absorption, supports the production of osteocalcin (a structural protein in bone), and stimulates the vitamin D receptor in innate immune cells to support a healthy immune response.*