Jarrow Formulas MK-7 is made via fermentation by Bacillus subtilus natto. MK-7 (Menaquinone-7) is an enhanced bioactive form of vitamin K2 from Natto that is ten times better absorbed than K1 from spinach.* MK-7 is responsible for the carboxylation of specific bone proteins needed for building bone.* Also, MK-7 promotes cardiovascular health by helping to maintain arterial elasticity.*

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.