What about buttermilk or dry milk powder? It's often found in bread recipes. I should avoid dairy products like cheese and milk itself, but it's OK to consume small amounts of it? I guess the more healthy diet is not a perfect diet, rather an optimized one. It's about decreasing the amount of bad ingredients little by little. So it's better to consume rice noodles rather than wheat noodles, ricemilk instead of buttermilk, even if there is some gluten in rice. Otherwise I would feel quite overstrained. I simply try to slowly approximate to the ideal diet little by little. You think that's wise? :P
EDIT: ricemilk instead of buttermilk