If you have celiac disease or nonceliac gluten sensitivity, you undoubtedly check labels or only buy products with a reassuring “certified gluten-free” seal. (Now, thanks to new FDA rules, no product can claim “gluten free” unless it’s verified at 20ppm or less.)
For the gluten-free newbie, though, this list may offer a few "watch out" moments. Remember: If a product is manufactured in the U.S. with wheat, it must disclose that on the label (typically at the bottom of the ingredient list); but it does not have to disclose other gluten culprits, such as barley and rye – and all bets are off if the product is made outside of the United States.