From the Manufacturer's Label:
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.**
Manufactured by Jarrow Formulas®.No: Wheat, gluten, dairy, egg, fish/shellfish, peanuts/tree nuts.