Christiaan Eijkman (August 11, 1858 – November 5, 1930) was a Dutch physician and pathologist whose demonstration that beriberi is caused by poor diet led to the discovery of vitamins. Together with Sir Frederick Hopkins, he was awarded the 1929 Nobel Prize for Physiology or Medicine.

Although Eijkman had been sent to Indonesia to study beriberi, the discovery of the cause was accidental. He noticed the symptoms in some chickens used in his laboratory when their feed had been altered temporarily. Later he determined that polished rice lacked the dietary component found in unpolished rice.

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• Biography
• Christiaan Eijkman – Biography

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