What does the "Organic label" mean on foods?

I support having an organic diet, as many of my patients and coworkers know.  However, when I decided to learn the strict definition of "organic" food per the U.S. government, I went on another goose chase.  Here are the results.

A search will get you to this government page on "Organic Food."  The orginal bill was passed in 1990.  Go down to paragraph label "3." for the definition of organic.  I like it.  Unfortunately, it's always something.  There are FOUR different levels of organic foods and these may be reflected in the labels.  The gold standard, top level states "100% organic."  Look out for it, since use of the label is optional technically, although it wouldn't be clear to me why a manufacturer would go through all the trouble to produce 100% organic food and then not use the label.  I'm going to read my labels more thoroughly, especially my produce.

I hope you learned something too.

Your Allergy Dude.