Question

In whichyear was Vitamin A discovered?

Answer 1

Answer:

Hopkins received a Nobel Prize for this discovery in 1929. By 1913, one of these substances was independently discovered by Elmer McCollum and Marguerite Davis at the University of Wisconsin–Madison, and Lafayette Mendel and Thomas Burr Osborne at Yale University, who studied the role of fats in the diet.

Answer 2

1931

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