
Before the 20th century, no one had heard of vitamins. It was Christiaan Eijkman who first pointed out a substance in rice skin, which was later to be known as vitamin B1. For this, and for his new ways of investigating, as well as for the methods he used to control diseases caused by vitamin deficiency, Eijkman was awarded the 1929 Nobel Prize in Physiology or Medicine.
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