Discovery of Vitamins

Vitamin Year Discovered Scientists
Vitamin A 1912-1914 (1913?) Elmer V. McCollum and M. Davis
Vitamin D 1922 Edward Mellanby
Vitamin E 1922 Herbert Evans and Katherine Bishop
Vitamin K 1929 Henrik Dam
Thiamin (B1) 1912 Casimir Funk – coined term “Vitamines” but e dropped off in 1920 because not all vitamins are composed of amines
Riboflavin (B2) 1926 D. T. Smith, E. G. Hendrick
Niacin (B3) 1937 Conrad Elvehje
Pantothenic Acid (B5) 1933 but isolated in 1939 Richard Kuhn
 Pyridoxine (B6) 1941 Paul Gyorgy
Biotin (B7) 1934 Paul Gyorgy
Folate (B9) 1933 Lucy Wills
Cyanocobalamin (B12) 1926, but isolated in 1948 Karl A. Folkers  and Alexander R. Todd
Vitamin C 1912 A. Hoist and T. Froelich