Celiac disease and other types of gluten intolerance inevitably impose sweeping dietary restrictions. Everyone knows that beer, bread, cakes, and pastries are off the table immediately. However, many are unaware that the list goes on.

The Huffington Post reports that gluten hides in a wide variety of less obvious foods, including pickles, candy and even meat. In addition, dietary supplements, vitamins, and certain medications may also contain traces of the protein. For this reason, experts urge gluten intolerant consumers to read every label – even if the product isn’t technically food.

"It's basically the same challenges as with food," says Rachel Begun, a spokesperson for the Academy of Nutrition and Dietetics. "If wheat starch is identified, obviously then that medication is off limits."

Are you suffering symptoms without knowing why? These unexpected gluten sources may be the culprit.

soy sauce
Besides soy beans, this condiment may contain wheat. Fortunately, a number of gluten-free alternatives are available. Looking Glass / Flickr
Pickles
Some pickling processes rely on malt vinegar, which is made from barely. For this reason, you may want to switch to brands that use corn-based vinegar. Sleepy Neko / Flickr
Hot Dogs
While the bun is a no-brainer, the dog itself is less obvious. However, many sausages contain wheat gluten, so make sure to read the label before you fire up the grill. ab9kt
Licorice
Yes, it’s true: some licorice brands may not be safe for gluten intolerants. Several products list wheat flour as an ingredient. JonoTakesPhotos / Flickr
Veggie Burger
Veggie burger patties – and other fake meat, for that matter – often use gluten to achieve a meat-like texture and taste. Dano / Flickr
Salad Dressing
Check the label of your salad dressing. “Modified food starch” usually indicates a gluten-based thickening agent. jeffreyw / Flickr
Flavored Potato Chips
Many potato chips brands use wheat, barley, or rye to give their product a particular taste. stu_spivak / Flickr