How did you determine which foods were a "good," "very good," or "excellent" source of nutrients?

We developed a two-part formula to determine how rich a food was as a source of nutrients. The first (and most important) part of this formula looked at the nutrient density of each food. Nutrient density is a key idea in nutritional science. It ...

from The World's Healthiest Foods http://ift.tt/1PkUSCo