<<Disclaimer: Verify this information before applying it to your situation.>> Hi. I have a box of these tea bags in my cupboard. I called the company once to see if there was any gluten in the product as they list "natural ingredients." I never got a response. The ingredients listed are: hibiscus, cranberries and apples, rose hips, chamomile, natural flavors. Since it doesn't list any type of tea, I'm guessing the natural flavors are just tea leaves and that's it, but I don't drink a lot of tea and would appreciate any input. Thanks. Lisa