canned tuna fish. It is usually NOT gluten free. Even tuna packed in spring water contains vegetable broth that may contain gluten.

foods with hidden ingredients."natural flavor, "flavoring", "hydrolyzed vegetable protein (HVP)", "vegetable protein", "spices", "spice extract" "yeast extract". etc.

 

 If the manuafacture does not list specifically what the ingredient is there is a good chance theya re hiding something. For example, casein, gluten, MSG, glutamate (a component of MSG) colorings, & apartame can be added to an ingredietn without having to have each additive listed as an ingredient on the label. Example a blueberry concentrate may contain several other ingredients in lesser amounts than the blueberry with a listing on the label as "natural flavoring"

 

Always read labels & verify with manufacture if ingredients are not clearly stated. If in doubt, do not purchase the product in question.