s Disease, a form of hypothyroid autoimmune disease, can have bad reactions to
soy.
Soy milk is fine, tofu is fine, tempeh and other fermented soy products such as miso and natto and real soy sauce (this doesn't mean Kikkoman) are fine, fresh soy beans (edamame) are fine, but this shouldn't obviously be the sum total of your diet. All legumes have positive qualities, are good sources of protein and fiber. And remember, all soy milk isn't created equally.