Casimir Funk ( Poland - USA) biochemist. In 1910, at the Lister Institute in London, he studied a deficiency disease known as beriberi. Funk found a substance which prevented the disease, and called it "vitamine". Though it was actually vitamin B, the name later referred to all the vitamin groups. He later also discovered that pellagra, a skin disease found in impoverished areas of the U.S., was caused by vitamin deficiency establishing a link between malnutrition and disease.