Nobel Prizes and Laureates

Nobel Prizes and Laureates

The Nobel Prize in Physiology or Medicine 1943
Henrik Dam, Edward A. Doisy

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Henrik Dam - Facts

Henrik Carl Peter Dam

Henrik Carl Peter Dam

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"

Field: biochemistry, chemistry

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.

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