vitamin k2 mk-7 liquid drops by maryruth's for bone & heart health, formulated for adults & children, vegan, non-gmo & gluten free, 2 month supply, unflavored, 1 fl oz maryruth organics our k2 (mk7) is sourced from natto, a traditional japanese fermented soybean product, which is the highest food source of natural k2 (mk7). the process of fermentation removes soy from the product and produces vegan, soy-free, all-trans, bioactive k2 (mk7). it is estimated that 80% of americans do not get enough k2 in their diet, comparable to the deficiency rate of vitamin d. k2 is crucial for strong bones, helping calcium and other minerals to bind into the bone matrix. proper calcium absorption diminishes calcification, leading to a healthier heart. each bottle comes with 30-60 servings.