Vitacost, Vitamin D3, 100 mcg (4,000 IU), 100 Capsules

Vitacost Vitamin D3 provides 100 mcg (4,000 IU) of vitamin D3 per capsule for nutritional support. Vitamin D3, or cholecalciferol, is the form of vitamin D that the body produces from sunlight exposure. This fat-soluble vitamin plays crucial roles in calcium absorption, bone health, and immune function. The supplement comes in easy-to-swallow capsules with 100 servings per bottle. Vitamin D deficiency is common, particularly in regions with limited sunlight or during winter months. This higher-potency formulation may be suitable for individuals with increased vitamin D needs.