The science of nutrition has advanced beyond expectation since
Antoine La voisier as early as the 18th century showed that oxygen
was necessary to change nutrients in foods to compounds which would
become a part of the human body. He was also the first to measure
metabolism and to show that oxidation within the body produces heat
and energy. In the two hundred years that have elapsed, the
essentiality of nitrogen-containing nutrients and of proteins for
growth and maintenance of tissue has been established; the ne
cessity for carbohydrates and certain types of fat for health has
been docu mented; vitamins necessary to prevent deficiency diseases
have been identified and isolated; and the requirement of many
mineral elements for health has been demonstrated. Further
investigations have defined the role of these nutrients in
metabolic processes and quantitated their requirements at various
stages of development. Additional studies have involved their use
in the possible prevention of, and therapy for, disease conditions.
General
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