Answer:
The amount of phytic acid in protein key is very small.

Please keep in mind that substances that could potentially be harmful, can also be helpful at smaller doses. Phytic acid acts as an antioxidant, can reduce oxidative stress, and is helpful in preventing cancer. (Do an Internet search on "health benefits of phytic acid,"--or any other substance you may have heard about the dangers of.)

Further, there are risks associated with any food, if eaten exclusively. If foods are eaten on a rotational basis as part of an IV (intermittent and varied) diet as we recommend (see Optimal Health Program™), toxins from food ingredients won't have the chance to accumulate.

Please see these links for more information:

Toxin Paranoia: http://www.wysong.net/pet-health-and-nutrition/toxin-paranoia.php

So You Think Wysong Uses Toxins in It's Products?: http://www.wysong.net/pet-health-and-nutrition/so-you-think-wysong-uses-toxins-in-its-products.php