Make sure the product is not produced in a plant/facility that processes wheat/wheat products. I mention this because of the other grains that were previously stated.
The information I'm presenting comes from the Manual of Clinical Dietetics Gastrointestinal Diets, 5th ED, American Dietetic Association:
OK for:
Bread: bread and rolls made from tapioca, arrowroot, corn or potato starch, corn, potato or rice or soy flour. Ok for pure corn tortillas, rice cakes and wafers
Cereals: OK for corn or rice cereals containing malt flavoring derived from corn. Ok for puffed rice, cream of rice, cornmeal, hominy, grits and popcorn
Meats: Avoid pre-breaded meats. Breading should not be made with wheat, rye, barley or oats. Ok for meats such as cold cuts, hotdogs or sausage made WITHOUT fillers.
Potatoes/substitutes: OK for white or sweet potatoes, enriched or wild rice, rice noodles, Pastas made with flours underlined above in bread section.
TIPS: the dough of gluten free flour can be thicker or thinner than dough containing gluten; therefore do not add more of your special flour.
When you make a recipe and need to substitute flour you can substitute 1 cup of wheat flour for any of the following:
a. 1 scant cup of cornmeal
b. 7/8 cup of rice flour (white or brown) or
c. 1 cup of corn flour finely milled
If you are making a product that uses 1 TBSP of regular flour as a thickener then use
a. 1 and 1/2 tsp of cornstarch
b. 1 Tbsp of rice flour (white or brown)
c. 1 and 1/2 tsp of gelatin or arrowroot starch
OTHER SOURCES FOR GLUTEN FREE INFO: The Gluten Intolerance Group of North America, Celiac Sprue Association, and the Celiac Disease Foundation. Sometimes the best people to talk to are the ones who already have the disease. They are full of wisdom.
amlphillips, RD