Food or overall nutrition comprising "what" is being intentionally fed to a pet.
Diet refers to what is being intentionally fed to a pet.
Food choices can have major impact upon the health, happiness, and even behavior of a pet.
Applicable questions refer to methods of food selection, portion control, weight control through food choices, and use of dietary supplements such as vitamins.
For concerns regarding the act of providing food for consumption, apply feeding.
For concerns regarding the act of a pet consuming food (inappropriate or not), apply eating.
Both feeding and eating may be used in conjunction with diet as appropriate.
