This K2 supplement was derived from natto, a fermented-soybean product
Features the biologically active form of vitamin K-2
Helps keep calcium within the cardiovascular system by encouraging optimum uptake throughout the body
Swanson Ultra Natural Vitamin K2 (Menaquinone-7 from Natto) is the most biologically active form of vitamin K2. Derived from 100% natural Japanese natto (a fermented soybean product), this k2 supplement helps promote bone and cardiovascular health. Vitamin K-2 itself consists of 13 numbered natural substances called menaquinones of which primarily menaquinone-7 has been scientifically proven to benefit cardiovascular and bone health.
"That is what vitamin K2 does... This is a good supplement to take and Swanson has it at the best price I have seen. The quality of this product is very good so add this to your nutritional supplements." ~product review by HealthyGuyNY