I have had the same question about test foods as well. I’m entering week 5 and have introduced Oat Bran, Buckwheat, and Coconut flour (in that order). When first adding Oat Bran gradually I experienced heart palpitations. But i was getting those after eating coconut oil too. So, I just attributed it to die-off and pushed forward with the oat bran. Now, after 2 weeks of eating these flours, I’m severely bloated with distention. I’m wondering if it’s from the flours or something else. Were the heart palpitations the “reaction” i should have been looking for when testing foods? I still get them now.