A Nobel prize was won by discovering the vitamin that stops bleeding
Henrik Dam and Edward Doisy shared the 1943 Nobel Prize in Medicine for identifying Vitamin K, a vital nutrient that enables blood to clot and prevents life-threatening hemorrhages.
Vitamin K earned its name from the German word Koagulation after Danish scientist Henrik Dam noticed that chicks on a fat-free diet suffered from uncontrollable bleeding. This discovery proved that a specific, fat-soluble nutrient was essential for blood to thicken and seal wounds effectively.
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