I picked up June 2010 edition of The Costco Connection and read "A Pain in the Gut" by Jacqueline Duda. She said many people who eat a gluten free diet may need to make sure they are getting enough B and D vitamins. She stressed being careful because many vitamins contain gluten and can be toxic if to much is consumed. Duda provided three great online links: (1) www.celiacdiseasecenter.org and (2) www.rockli.com (3) www.mayoclinic.com/health/celiac-disease/DS00319 . I wrote a post about Lisa's Gluten-Free Advise, the post was titled Resources for Living Gluten Free.
One grain people might want to explore is an ancient grain called Quinoa. It is 100% gluten free and is a complete source of protein. It is now available in many grocery stores. Bob's Red Mill is one brand that carries Quinoa, Quinoa Corporation is another. A quick search on the internet showed many recipes for using this nutty flavored grain. There is an excellent background article from Living in Peru about this grain.
There was a news article about a Quinoa cookbook written by Patricia Greene and her sister Carolyn Hemming. I have a sweet tooth so I was immediately drawn to their description of a moist chocolate cake recipe. Looks like I may be adding to my cookbook collection.