Henrik Dam


Henrik Carl Peter Dam

Photo from the Nobel Foundation archive.

Henrik Carl Peter Dam
The Nobel Prize in Physiology or Medicine 1943

Born: 21 February 1895, Copenhagen, Denmark

Died: 17 April 1976, Copenhagen, Denmark

Affiliation at the time of the award: Polytechnic Institute, Copenhagen, Denmark

Prize motivation: “for his discovery of vitamin K”

Henrik Dam received his Nobel Prize one year later, in 1944.

Prize share: 1/2


In addition to carbohydrates, proteins and fats, our bodies need vitamins to function well. When Henrik Dam conducted experiments on chickens that were given food with a low fat content, he noted that they suffered from bleeding that took a long time to stop. In 1934 he showed that an addition of hempseed counteracted the bleeding and concluded that the seed contained a substance, vitamin K, that was needed for the blood to coagulate. This knowledge became especially important in treating bleeding among small children.

To cite this section
MLA style: Henrik Dam – Facts. NobelPrize.org. Nobel Prize Outreach AB 2023. Tue. 30 May 2023. <https://www.nobelprize.org/prizes/medicine/1943/dam/facts/>

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