Kazimierz Funk (Polish: [kaˈʑimjɛʂ ˈfuŋk]; February 23, 1884 – November 19, 1967), commonly anglicized as Casimir Funk, was a Polish-American biochemist generally credited with being among the first to formulate (in 1912) the concept of vitamins, which he called "vital amines" or "vitamines".