Formulated without the use of artificial flavors or colors, Solgar's Natural Vitamin K2 (MK-7) is derived from natto extract. Vitamin K2 is an active form of Vitamin K and is important for bone health.  Vitamin K2 is not readily found in the diet and is manufactured by gut microflora.  Vitamin K2 can also be extracted from a natural whole-food source, the fermented soybean product Natto. This product has 100 mcg per vegetable capsule.