23 Cleanest Food Choices You Can Make—And The 23 Worst

The journey from fresh to processed is not a simple one—and eating completely clean at every meal isn't always realistic.

That’s why we compiled this chart to show how common foods morph from real to highly processed. Your goal: Choose from foods in their natural state as often as possible, go with foods that are somewhat processed in a pinch, and limit highly processed items. 

Source
http://www.prevention.com/food/clean-everyday-foods