di·​e·​tet·​ics | \-ˈte-tiks \

Definition of dietetics 

: the science or art of applying the principles of nutrition to the diet

First Known Use of dietetics

1799, in the meaning defined above

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The first known use of dietetics was in 1799

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di·​etet·​ics | \-ˈtet-iks \

Medical Definition of dietetics 

: the science or art of applying the principles of nutrition to feeding

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