Wheat and gluten free food fact file

Don't know why you would use xanthan gum or guar gum? Want to know which type of soy sauce is safe? How many different types of rice flour there are?

We're compiling a food fact file to help you to understand some of the more unusual ingredients used in a wheat free or gluten free diet, and also some of the interesting facts associated with foods such as cranberries or bananas.