The following ingredients contain soy proteins.

Edamame

Miso

Natton

Shoyu sauce

Soy fiber, flour, grits, nuts, sprouts

Soy protein

Soy sauce

Tamari

Tempeh

Textured vegetable protein

Tofu

Source: Food Allergy Initiative

All types of soy are in a LOT of things, from foods to cosmetics, read the labels! If ever in any doubt call the manufacturer. In my dealing with calling companies they have alway been friendly. If they aren’t friendly you can always leave the product on the shelf.