1. Relating to the diet. 2. Descriptive of food that, naturally or through processing, has a low caloric content.
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di·etet·ic .dī-ə-'tet-ik adj
1) of or relating to diet
2) adapted (as by the elimination of salt or sugar) for use in special diets
di·etet·i·cal·ly -i-k(ə-)lē adv
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di·e·tet·ic (di″ə-tetґik) [Gr. diaitētikos] 1. pertaining to diet. 2. pertaining to a diet that is restricted, such as for health reasons.Medical dictionary. 2011.