Acacia Gum
Agar
Algae
Algin
Alginate
Allcin
Almonds
Aluminum
Amaranth (Check with manufacturer for cross contamination)
Annatto (check with manufacturer)
Apple Cider Vinegar
Arabic Gum
Arrowroot
Artichokes
Aspartame ***WARNING***
Ascorbic Acid
Baking Soda
Balsamic Vinegar (generally G.F.)
Beans
BHA
BHT
Beta Carotene
Betaine
Bicarbonate of Soda
Biotin
Buckwheat (beware of cross contamination)
Butter (check with manufacture is it contains additives or natural flavorings)
Butylated Hydroxyanisole
Butyl Compounds
Calcium Carbonate
Calcium Chloride
Calcium Phosphate
Calcium Silicate
Calcium Stearate
Camphor
Canola Oil (is gluten free but some celiac experience a laxative effect)
Caprylic Acid
Carboxymethylcellulose
Carnauba Wax
Carob Bean
Carob Flour
Carob Bean Gum
Carrageenan
Casein
Cassava
Castor Oil
Cellulose
Cellulose Gum
Cetyl Alcohol
Chlorella
Chymosin
Corn Oil
Corn Flour
Corn Meal
Corn
Cornstarch
Chickpeas
Chickpea Flour
Cheese (check with manufacturer, avoid preshredded cheese.)
Cream of Tatar
Calcium
Chloride
Calcium Phosphate
Carob Bean Gum
Carrageen
Citric Acid (in U.S. it is gluten free, but outside U.S. it can be made from wheat or corn)
Corn
Corn Sweetener
Corn Syrup Solids
Cortisone
Cotton Seed Oil
Cysteine, L
Demineralized Whey
Desamidocollagen
Dextrimaltose
Dextrose
Dioctyl Sodium
Eggs
Elastin
Ester Gum
Fish (Fresh, unseasoned and unbreaded. Gortons grilled fish IS NOT G.F.)
Flax Seeds
Folic Acid - Flocin
Formaldehyde
Fructose
Fructose
Fruit (if dried check with manufacturer)
Fumaric Acid
Garbanzo Beam Flour
Gelatin
Gelatine
Glutamine (amino acid)
Glutamic Acid
Glycerides
Glyceryl Nono-Oleate
Glycerol Monooleate
Glycol
Glycolic Acid
Gram Flour (also know as Chick Pea Flour)
Grits (If instant or flavored check with manufacturer)
Guar Gum
Hemp
Herbs
Honey
Hydrogen Peroxide
Hydrolyzed Soy Protein
Invert Sugar
Iodine (some individuals with D.H. have reactions to Iodine)
Keratin
Lactic Acid
Lactose
Lanolin
Lard
Lecithin
Lentils
Lipase
Locust Bean Gum
Lecithin (could contain soy, avoid is sensitive to soy)
Locust Bean Gum
Magnesium Carbonate
Magnesium Hydroxide
Maize
Malic Acid
Maltodextrin (check with manufacturer)
Malititol
Manioc
Masa Harina or Masa made from Corn
Meat (fresh or frozen, with no breading or preseasoned)
Milk (check with manufacturer if flavored, or buttermilk. Horizon Dairy is G.F.)
Millet (Beware of cross contamination)
Milo (Check with manufacturer)
Malic Acid
Mung Bean
Microcrystalline
Mineral Oil
Mineral Salts
Monosodium Glutamate; MSG ( if made in U.S. it is G.F.)
Monopotassuim Phosphate
Musk
M Vitamins & Minerals
Nuts (If flavored, check with manufacturer)
Niacin
Niacinamide
Oats (beware of cross contamination. Quaker cannot guarantee G.F. Status)
Olestra *WARNING*
Oleyl Alcohol
Oleyl Oil
Olive Oil
Paraffin
Peas
Peanut Oil
Pepsin
Peru Balsam
Petrolatum
Phenylalanine
Polenta (If not home-made check with manufacturer)
Polyethylene Glycol
Polyglycerol
Polysorbates
Potatoes
Potato Flour
Potato Starch
Potato Vodka
Potassium Citrate
Potassium Iodide
Pristane
Propolis
Propylene Glycol
Propylgallate
Psyllium
Pyridoxine Hydrochloride
Pyrophosphate
Quinoa
Rape Seed (Canola oil)
Rennet
Reticulin
Rosin
Royal Jelly
Rice
Rice Flour
Rice Vinegar (Check with manufacturer)
Romano Bean
Sago Palm
Sago Flour
Saifun (bean threads)
Safflower Oil
Seaweed (often used in Sushi)
Sesame Seeds
Sphingolipids
Spices (If they are pure they are generally G.F. McCormick's Spices are G.F.)
Soba ( check that these noodles are pure buckwheat before consuming)
Soda (also called Baking Soda)
Sodium
Sodium Ascorbate
Sodium Benzoate
Sodium Citrate
Sodium Erythrobate
Sodium Nitrate
Sodium Silaco Aluminate
Sodium Stannate
Sorbitol
Soy ( some celiac are also sensitive to soy, but soy is G.F.
Soy Oil (If not sensitive to soy)
Soy Lecithin
Sorghum
Sorghum Flour
Spirits (Certain types are G.F. )
Starch (if made in U.S. it is usually G.F, in the U.K it can be from either corn or wheat)
Stearates
Stearamine
Stearic Acid
Sucrose
Sulfites
Sulfosuccinate
Sulfur Dioxide
Sunflower Oil
Sunflower Seeds
Sweet Chestnut Flour
Tallow
Tapioca
Tapioca Flour
Tartaric Acid
TBHQ or Tributylhydroquinone
Tea
Tea Tree Oil
Teff (Beware of cross contamination)
Tequila (Made without dyes & additives. Find Tequila made from the Agave plant)
Thiamine Hydrochloride
Tofu (read label, generally made from Soy)
Tolu Balsam
Tragacanth
Tragacanth Gum
Tragacanth Gum
Tri-Calcium Phosphate
Turmeric
Tyrosine
Urad beans
Vanillin
Vitamin A (Palmitate)
Vegetables (fresh, canned, & frozen. Avoid sauces and seasoning packets)
Whey
Wine (most are generally gluten free, avoid wine coolers, they contain barley malt))
White Wine
White Wine Vinegar
Wild Rice
Xanthan Gum
Yam Flour
Yogurt (check with manufacturer, Yoplait without the addins like cookies are G.F.)

That's a nice list. I want to add something I've kept in my old chest. It was given to me by my nutritionist friend. She said I might need the list someday. Maybe this is the "someday".

Meat and meat alternatives: all meats except breaded, prepared with bread crumbs or ingredients that are creamed or with wheat, rye and barley.

Milk and milk products: all milk products except those mixed with Ovaltine, commercial chocolate milk with ceral additives, milk beverages flavored with malt, pudding thickened with wheat flour, ice cream or sherbet containing gluten stabilizers, processed cheese foods and spreads, Roquefort and ricotta cheese.

Fruits and veggies
all except breaded, prepared with bread crumbs or creamed

Starches and grains
bread, cereal or dessert products made from buckwheat, cornmeal, soybean flour, rice flour, potato flour, tapioca; cornmeal, popcorn and hominy; rice, cream of rice, puffed rice and rice flakes; potato chips