Jarrow Formulas® MK-7 is naturally made via fermentation by Bacillus subtilus subsp.natto. MK-7 is a longer-acting form of vitamin K vs K1. Vitamin K contributes to normal blood clotting and to the maintenance of normal bones.
Additional Warnings: Consult a healthcare professional before using this product if you are taking medications (especially anticoagulants [e.g. warfarin/Coumadin]), trying to conceive, pregnant, or lactating, under the age of 18, or have a medical condition; if adverse reactions occur, discontinue use.