From Longman Dictionary of Contemporary Englishdieteticsdi‧e‧tet‧ics /ˌdaɪəˈtetɪks/ noun [uncountable] DFNthe science that is concerned with what people eat and drink and how this affects their health
Examples from the Corpus
dietetics• Pomiane chose for his career the study of biology, specialising in food chemistry and dietetics.• In the field of dietetics, standards of practice have been developed for practitioners in the field.• These leadership models can be applied to the field of dietetics and nutrition, particularly in the area of productivity. 