Vitacost, Vitamin D3, 100 mcg (4000 IU), 300 Capsules

Vitacost Vitamin D3 provides high-potency vitamin D supplementation with 100 mcg (4000 IU) per capsule. Vitamin D3 is the natural form of vitamin D produced by the skin in response to sunlight exposure. This fat-soluble vitamin plays crucial roles in calcium absorption, bone health, and immune function. The product contains 300 capsules, offering an extended supply for daily use. Vitamin D supplementation may be particularly important for those with limited sun exposure or specific dietary needs.