Unfortunately gluten is pervasive in many consumer products. Be fearlessly curious and check all labels of food and body products, and a general rule is that homemade is always best.

• Flavored prepackaged rice or pasta
• Tomato and spaghetti sauces
• Condensed canned soups
• Vegetable cooking sprays
• Flavored instant coffees and teas
• Some veined cheeses such as Roquefort and blue
• Chow mein noodles
• Artificial coffee creamer (all kinds)
• Bouillon cubes or powder, gravy and sauce mixes
• Imitation seafood products
• Ground spices
• Chewing gum can be dusted with wheat starch
• Communion wafers

These label ingredients can indicate the presence of gluten:

• Hydrolyzed plant protein (HPP)
• Hydrolyzed vegetable protein (HVP)
• Modified food starch (source is either corn or wheat)
• Mustard powder (some contain gluten)
• Monosodium Glutamate (MSG)
• Gelatinized starch
• Natural flavoring, fillers
• Whey protein concentrate
• Whey sodium caseinate
• White vinegar or white grain vinegar
• Rice malt (contains barley or Koji)
• Rice syrup (contains barley enzymes)
• Dextrin, malt, maltodextrin

These non-food items may also be gluten sources:

• Lip stick and lip balm Sunscreen
• Glue on stamps and envelopes
• Laundry detergents
• Soaps and shampoos
• Toothpaste and mouthwash
• Cosmetics, lotions, creams
• Prescription drugs
• Health supplements (vitamin pills, etc.)

(http://www.westonaprice.org/modern-diseases/against-the-grain/)