Jarrow Formulas - MK-7 90 mcg. - 60 Softgels Jarrow Formulas MK-7 is made via fermentation by Bacillus subtilus natto. Jarrow Formulas 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 car