if you have questions about ingredients, you really should read Dr. Greens book, the hidden epidemic (this isn't an add, i just found it very helpful, it was like my bible at first, it cleared up a ton of the celiac myths!) and if i'm not mistaken thats where i learned that anatto was ok!
I didn't think Annatto Coloring had gluten - I found a site that had a ton of things that did not have gluten but are listed as having it ... I just wanted to make sure.
Thanks for the book suggestion. I am reading gluten for dummies right now, it's a good book too!