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The discovery dates of the vitamins and their sources Year of discovery Vitamin Food source 1913: Vitamin A (Retinol) Cod liver oil: 1910: Vitamin B 1 (Thiamine) Rice bran: 1920: Vitamin C (Ascorbic acid) Citrus, most fresh foods 1920: Vitamin D (Calciferol) Cod liver oil 1920: Vitamin B 2 (Riboflavin) Meat, dairy products, eggs: 1922: Vitamin ...
Elmer Verner McCollum (March 3, 1879 – November 15, 1967) was an American biochemist known for his work on the influence of diet on health. [2] [3] McCollum is also remembered for starting the first rat colony in the United States to be used for nutrition research.
Charles Glen King (October 22, 1896 – January 23, 1988) was an American biochemist who was a pioneer in the field of nutrition research and who isolated vitamin C at the same time as Albert Szent-Györgyi. [1] A biography of King states that many feel he deserves equal credit with Szent-Györgyi for the discovery of this vitamin. [2]
Casimir Funk (Polish: Kazimierz Funk [kaˈʑimjɛʂ ˈfuŋk]; February 23, 1884 – November 19, 1967) was a Polish biochemist generally credited with being among the first to formulate the concept of vitamins after publishing a landmark medical writing in 1912.
Vitamin C was discovered in 1912, isolated in 1928, and in 1933, was the first vitamin to be chemically produced. Partly for its discovery, Albert Szent-Györgyi was awarded the 1937 Nobel Prize in Physiology or Medicine.
Steenbock made his most significant discovery in 1923, when he established a relationship between vitamin D and ultra-violet light on bone health. He then founded the "Steenbock Process" in 1928, a method of concentrating vitamin D by irradiating food. This method was employed on a large scale through his Wisconsin Alumni Research Fund. [2]
Nikolai Ivanovich Lunin (21 May 1854 – 18 June 1937) [1] was a Russian Empire and later Soviet scientist who was the first to discover the existence of vitamins. As a student in Basel, he fed mice on a diet of proteins, fats, sugar, salts and water, but they died.
Thomas Burr Osborne (August 5, 1859 – January 29, 1929) was an American biochemist who, with Lafayette Mendel, independently discovered Vitamin A, [1] though Elmer McCollum and Marguerite Davis were ultimately given credit, as they had submitted their paper first by three weeks. He is known for his work isolating and characterizing seed ...