Pure Encapsulations PureHeart K2D is designed to support heart health and maintain a healthy calcium balance within vascular tissues. Each capsule contains 240 mcg of naturally derived Vitamin K2 (menaquinone-7) and 25 mcg of cholecalciferol (Vitamin D3), which are crucial for heart health and immune support. This formula is gluten-free, vegetarian, and non-GMO. Pure Encapsulations products are formulated using high-quality, pure ingredients free from unnecessary additives and many common allergens, and backed by verifiable science.