well, I talked to the nd about it last time, and I was getting constipated, just ugh feeling, so he put me on phytostan, which contains a small amount of undecylecnic acid before switching back over. This week, I might try to start taking 1 a day again. I can tell you that the phytostan certainly is waking up my bowels though. I am probably just going through intense die-off because I am starting from scratch again. However, my mood has been pretty calm the past couple weeks surprising.