Is it true that the protein in coffee is a cross reactor?
Celiac disease expert Stefano Guandalini, MD addressed this very question at the International Celiac Disease Symposium back in September 2013. He confirmed that there is no evidence that coffee has a protein that cross-reacts with gluten antibodies.
You do, however, have to be careful with flavored coffees found either at the supermarket or your local coffee shop. It is possible for some flavored coffees to have gluten-containing ingredients.
Once you’ve confirmed gluten-free status, go ahead and enjoy that cup of java!
Rachel Begun, MS, RDN