Source Naturals Vitamin D-3 400 IU | 200 Tablets - Bone & Immune Support

Source Naturals Vitamin D-3 400 IU, 200 tablets, supports healthy calcium and phosphorus balance for strong bones, supports muscle strength in older adults, and promotes a healthy immune response. Vitamin D-3 (cholecalciferol) is the body's preferred form. Manufactured in the USA in Scotts Valley, CA under cGMPs by the FDA.