Dietary Supplement Vitamin K2 as MK-7 Bioactive Form of Vitamin K2 from Natto 10X Better Absorbed Than K1 from Spinach* Promotes Bone Health* Jarrow Formulas® MK-7 is made via fermentation by Bacillus Subtilus natto. MK-7 (Menaquinone-7) is the bioactive form of vitamin K2 found naturally occurring in Natto. MK-7 is ten times better absorbed than K1, from spinach* and is responsible for the carboxylation of specific bone proteins needed for building bones.* No wheat, no gluten, no dairy, no egg, no fish shellfish, no peanuts tree nuts. *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.