Henrik Dam
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Henrik Carl Peter Dam (February 21, 1895 - 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 isoloated the dietary substance needed for blood clotting and called it the "coagulation vitamin" or Koagulations Vitamin in German, which became shortened to vitamin K.
He was born and died in Copenhagen. http://brunklp.narod.ru/dam-bio.htmlda:Henrik Carl Peter Dam de:Henrik Dam es:Henrik Carl Peter Dam pl:Henrik Carl Peter Dam