Healthy Food definition

Info source; 

http://depts.washington.edu/waaction/plan/append/g.html

A healthy food is a plant or animal product that provides essential nutrients and energy to sustain growth, health and life while satiating hunger.

Healthy foods are usually fresh or minimally processed foods, naturally dense in nutrients, that when eaten in moderation and in combination with other foods, sustain growth, repair and maintain vital processes, promote longevity, reduce disease, and strengthen and maintain the body and its functions. 

Healthy foods do not contain ingredients that contribute to disease or impede recovery when consumed at normal levels.