How to Understand and Use the Nutrition Facts Label according FDA

-  The Nutrition Facts Panel – An Overview
-  The Serving Size
-  Calories (and Calories from Fat)
-  The Nutrients: How Much?
-  Understanding the Footnote
-  How the Daily Values (DV) Relate to the %DVs
-  The Percent Daily Value (%DV)
-  Quick Guide to %DV
-  Nutrients With a %DV but No Weight Listed – Spotlight on Calcium
-  Nutrients Without a %DV: Trans Fats, Protein, and Sugars

http://www.fda.gov/food/resourcesforyou/consumers/nflpm/ucm274593.htm