noun
food group
Used in nutritional contexts to refer to categories of foods, such as grains, vegetables, or proteins.
バランスの良い食事には、各食品群からまんべんなく食べることが大切です。
For a balanced diet, it's important to eat evenly from each food group.
栄養素 refers to nutrients (e.g., vitamins, minerals), while 食品群 refers to categories of foods themselves.
Compound of 食品 (food product) and 群 (group).