#3 – Vitamin K2
The reason vitamin K2 is included as part of this article is because it is possibly the most important vitamin that most people have never heard of. Its key two roles are to activate proteins and to regulate calcium metabolism (keeping it in the bones and teeth where it belongs, and out of the soft tissue where it doesn’t belong) and high blood calcium significantly increases the risk of cardiovascular disease.
Its main natural sources are egg yolks, mature cheeses, meats such as chicken and beef and their fat, livers, and organs, and in fermented vegetables, as well as sauerkraut and kefir. Unfortunately, most people are deficient in K2 and the recommended daily intake is around 120 mcg/d.