Soy, for me, is the hardest allergen to avoid. Soy is in everything, it seems! Avoiding soy means basically not every eating out because restaurants generally use soy oil for cooking. FAAN says that people with soy allergies can safely eat soybean oil and soy lecithin, but that has not been our experience.
I am a big fan of Asian food, and it is really hard to do that without soy. (See my recipe for Sesame-Lime Chicken Stir Fry that is soy-free.)
Soy product ingredient list
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edamame
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hydrolyzed soy or vegetable protein
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miso
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MSG
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natto
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natural and artificial flavoring
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shoyu sauce
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soy (soy fiber, soy nuts, soy flour, etc.)
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soy lecithin
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soy protein (concentrate, isolate)
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soy sauce
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soya
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soybean (curd, granules)
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tamari
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tempeh
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textured vegetable protein (TVP)
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tofu
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vegetable gum
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vegetable starch
You’re missing some important things from this list. It may be obvious that soybean oil is off limits, but considering some of my clients have been told by their docs that soybean oil is ok and then had reactions, it would be better to spell it out separately.
Also, beware of vitamin E especially, as that’s usually derived from soybeans.
I would love to know what other products are missing from this list. I agree that Vitamin E (often listed as “mixed tocopherols” in ingredient lists) is often made with soy, but it can also be made from wheat, sunflower seeds, or other raw ingredients.