IPA: //daɪˈɛtɪkli//
KK: /daɪˈɛtɪkli/
In a way that relates to diet or nutrition, often concerning the health effects of food choices.
She planned her meals dietetically to ensure she was getting the right nutrients.
Dietetically → It is formed from "diet" (from Greek "diaita", meaning way of life or regimen) and the suffix "-ically" (meaning in a manner relating to). The word "dietetically" refers to something done in a manner related to diet or nutrition.
Think of 'diet' as a way of life and remember that 'dietetically' means doing something in a way that relates to diet or nutrition.