Another fermented rich food is Natto. It is basically a Japanese popular dish. Bacillus Subtilis, the highly powerful probiotics, is contained in Natto. The Bacillus Subtilis is a proven friend of human immune system. It also supports cardiovascular health and at the same time, it increases the Vitamin K2 digestion.
Nattokinase, a very strong anti-inflammatory enzyme, is also contained in Natto. This enzyme is a proven fighter against cancer.