Vitamin D functions as a hormone, a chemical messenger with widespread effects in the human body. It is important for optimal bone, cardiovascular, neuromuscular, and immune health. Adequate calcium and vitamin D throughout life, as part of a well-balanced diet, may reduce the risk of bone density loss. Supplementation with vitamin D may be necessary to meet daily needs, since obtaining sufficient vitamin D from natural food sources and sun exposure alone can be difficult. Research shows that vitamin D3 (cholecalciferol) is approximately 87% more potent than vitamin D2 for raising and maintaining vitamin D blood levels. Vegan Friendly, Non-GMO FREE FROM: Dairy, Gluten, Egg, Nuts, Peanuts, Fish, Shellfish, Soy, Wheat. Health Benefits Supports bone, cardiovascular, neuromuscular, and immune health Adequate calcium and vitamin D may reduce the risk of loss of bone density. Dry, water-soluble preparation of natural vitamin D3 (cholecalciferol) More potent than vitamin D2 for raising vitamin D blood levels Ingredients Vitamin D3 (as cholecalciferol, 5,000 IU)