On the other hand, fermented soy foods, like tempeh, miso, tarami and soy sauces, and natto (if you like it!) block the effects of phytic acid and have great health benefits. The beneficial bacteria that are present in the fermented soy greatly affect the health of the digestive tract therefore increasing absorption of nutrients.
Generally I believe in moderation and it seems that soy in its many forms is very overdone, especially in the health food industry. I recommend limiting consumption of soy and leaning towards eating only fermented soy.