Healthy Food: Food that is helpful to the body. Examples of healthy food include: fruit, vegetables, nuts, etc. These are best eaten raw (ie fruits or vegetables) or cooked (ie meat) with minimal previous processing.
Junk food: Food that can harm rather than help the body. Examples are: chips and other fatty foods. None of these foods are part of a healthy meal because of the processing necessary to make them crispy, salty or sweet.