Christiaan Eijkman (1858 - 1930)

Christiaan Eijkman (Dutch: [ˈkrɪstiaːn ˈɛikmɐn]; 11 August 1858 – 5 November 1930) was a Dutch physician and professor of physiology whose demonstration that beriberi is caused by poor diet led to the discovery of vitamins. Together with Sir Frederick Hopkins, he received the Nobel Prize for Physiology or Medicine.