[QUOTE=Ms Arielle]Why Japanese Men Have Far Less Heart Disease – The Mission ...
https://medium.com/the.../why-japan...se-badbc3841322

The above is mentioned because the Japanese eat Miso/natto regularly.
And from the healthline article linked above.




Here is one more variable not considered that I just read about in the book Fiber Menace, The Japanese consumption of fiber is almost nil. When they move to the US and begin eating carbs, along with that usually comes fiber.