What do the Japanese eat for breakfast that could help North Americans? Every year 7.5 billion packages of Natto are sold in Japan. The government has made it an integral part of the school breakfast program. Natto contains vitamin K2, a largely unknown vitamin on this continent and it packs a whammy. Studies show that K2 helps to prevent osteoporosis (brittle bones) and cardiovascular disease.
In 1929, Danish scientist Dr. Henrik Dam, discovered vitamin K. Later, Japanese researchers reported that women living in Tokyo, where Natto, a centuries old Japanese food is a popular, had increased bone density. But women living in Western Japan where Natto is not popular showed a decline in bone density. Further research determined that vitamin K2 in Natto was responsible for this benefit.