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In the early 20th century the discovery of vitamins began. Today there
is a chance that there are some vitamins that are still undiscovered. The
definition of vitamin is: one of several substances necessary for animal
nutrition, and occurring in minute quantities in natural foods; numerous types
have been distinguished, and designated by the letters of the alphabet. Each
and every living animal needs vitamins to grow and be healthy.

Since the human body can t produce vitamins naturally or normally
produce the amounts needed, food provides the body with them. There are
different vitamins found in different foods. These vitamins give vital
nutrients to an animal.

In 1906, the British biochemist Sir. Frederick Hopkins demonstrated that
foods contain accessory factors in addition to proteins, carbohydrates, fats,
minerals and water. Then, in 1912, thee chemist Casimir Funk identified that
the antiberiberi substance in unpolished rice was an amine (a type of
Nitrogen-containing compound), so Funk proposed that it be named vitamine, from
vital amine. It was later discovered that different vitamins have different
chemical properties. This discovery caused vitamine to be turned into vitamin.

In 1912 Hopkins and Funk made a hypothesis. The hypothesis stated the
absence of some vitamins could cause diseases such as beriberi and scurvy.
Later a letter was assigned to each vitamin. The letters which were assigned to
vitamins in the early years of vitamin research categoriz...

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