Ingredients to avoid —> Hydrolyzed soy protein, miso, shoyu sauce, soy-anything, soy protein concentrate, soy protein isolate, soy sauce, soybean, soybean granules, soybean curd, tempeh, textured vegetable protein, tofu.
Foods commonly containing soy —> Baby foods, baked goods (cakes, cookies, muffins, breads), baking mixes, breakfast cereals, packaged dinners like macaroni and cheese, canned tuna packed in oil, margarine, shortening, vegetable oil and anything with vegetable oil in it, snack foods (including crackers, chips, pretzels), nondairy creamers, vitamin supplements.
Substitutions —> There are no good substitutes for items like tofu and soy sauce, so choose recipes that don’t directly rely on soy-based products. Read labels carefully as soy is used in an astonishing number of commercial products, often in places that you wouldn’t suspect, such as pasta sauce.