Relating to the diet.
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di·etary 'dī-ə-.ter-ē n, pl di·etar·ies the kinds and amounts of food available to or eaten by an individual, group, or population
dietary adj of or relating to a diet or to the rules of a diet <a \dietary disease> <\dietary habits>
di·etari·ly .dī-ə-'ter-ə-lē adv
Medical dictionary. 2011.