If you're looking for a safe gluten-free whey protein to drink try EAS. They are one of the very few products on the market that are completely gluten-free. I have personally checked this out for a client who has celiac disease.
Another safe protein - a gainer style protein shake that is completely gluten free is Ultimate Nutrition's Muscle Juice. All flavours are safe for celiac patients and people whom prefer a gluten-free healthy lifestyle.
All the best,
Elaine and Peter
I realize this post is 2 years old, so I'm assuming Ultimate Nutrition's Muscle Juice probably changed their formula. According to their product information listing on a dealer's site, this product contains the peptide bonded glutamine, and would therefore be suspect (quote and website source below). Does anyone use this product and have up to date info on whether or not it's gluten-free? Seems like a good product if it is.
"....In addition to the precursors to glutamine present in this protein, you get 1000 mg of glutamine per serving which includes the breakthrough L-Alanyl-L-Glutamine. This powerful dipeptide may protect against muscle degradation and provides fuel for exercise to help you go the distance."