
Casimir Funk, “The Vitamines”, 1922 was a nonfiction science book. Casimir Funk was the discoverer of niacin (vitamin B-3). The term “vitamin” used popularly today, was coined by Casimir Funk in his “theory of vital-amines”. The term today is in English “vitamin”. The niacin molecule that Casimir Funk discovered is shown below.

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