Here is a link to a list of common ingredients found of food labels. The magazine Gluten Free Living did an excellent job of researching food manufacturers to find out exactly what that stuff on the label is and if the ingredient are derived from a gluten-free source. Ingredients like Caramel Color, Maltodextrin, Flavors, Citric Acid and many more.
Click on the following link to go to Gluten Free Living’s Ingredients page. I have printed out this list and am in the process of making a reference book for Sam’s caretakers: grandparents, teachers, etc.
I absolutely love this magazine, and highly recommend getting a subscription!