Now Foods, MK-7 Vitamin K-2 Extra Strength, 300 Mcg, 120 VegCapsProduct Description Vitamin K is well known for its role in the synthesis of a number of blood coagulation factors and is also important for the formation of strong, healthy bones. MenaQ7 MK 7 is a unique, bioavailable form of vitamin K2 that plays a critical role in arterial health through its ability to support proper calcium metabolism in blood vessels and arteries. Product Benefits Dietary Supplement. Supports Bone Health. Cardiovascular Support*.