Source Naturals Vitamin K2 + D3 60 tablet

Vitamin K2 is a more biologically active form of vitamin K extracted from a fermented Japanese soyfood called natto, a powerhouse of nutrients. Fat-soluble, it is an essential cofactor for the production of proteins that bind calcium supporting cardiovascular and bone health. Vitamin K2 is more efficient than K1 because it remains in circulation longer and is active in more tissues.