Jarrow Formulas - MK-7 for Bone and Cardiovascular Health 180 mcg. - 30 Softgels Jarrow Formulas MK-7 is naturally made via fermentation by Bacillus subtilis subsp. natto and is 10X better absorbed than K1 from spinach. MK-7 is a longer-acting form of vitamin K vs. K1 and MK-4 and clinically proven
