Henrik Dam

Overview
Henrik Dam (Full name Carl Peter Henrik Dam) (February 21, 1895 – April 17, 1976) was a Danish biochemist and physiologist.

He was awarded the Nobel Prize in Medicine in 1943 for his work in discovering vitamin K and its role in human physiology. His key experiment involved feeding a cholesterol-free diet to chickens. The chickens began hemmoraging and bleeding uncontrollably after a few weeks. Dam isolated the dietary substance needed for blood clotting and called it the "coagulation vitamin", which became shortened to vitamin K.

He was born and died in Copenhagen.