The benefits of vitamin K-2 include helping blood to clot, along with vitamin K-1, states WebMD. As of 2015, evidence is conflicting and insufficient to show that vitamin K-2 can treat steroid-related bone loss or osteoporosis. There is no proof it can treat cancer, morning sickness or spider veins.
Bacteria process a group of compounds primarily from cheeses, eggs and meats to produce vitamin K-2. Most people obtain sufficient vitamin K from their diets, and it is not usually taken as a dietary supplement, notes WebMD. Women 19 and older should take in 90 micrograms of the vitamin per day, and 120 micrograms per day is recommended for men age 19 and older.