This is an introduction to vitamin K, which is closely connected to blood’s capacity to clot.

Vitamin K is a fat-soluble vitamin discovered in the early 1930s by a Danish biochemist, Henrik Dam, who won the Nobel Prize 13 years later. The letter “K” comes from the German word “koagulation,” which has to do with blood clotting.

The vitamin consists of many different but related chemicals. Vitamin K1 (phylloquinone) and vitamin K2 (menaquinone) are the two natural forms. Both are found in a variety of foods,

Vitamin K is essential for the key proteins in our bodies, including some that are critical Continue reading →