I've just discovered that Cpn creates b12 antibodies. I have had a diagnosis of active Cpn many years ago but didn't really follow it up as the doctor I was seeing didn't seem that interested in it. I've never seen this discussed here before as a reason for low b12. Anyone know any more about this? It's also interesting that NAC is one of the 3 things used in a Cpn protocol. NAC at normal-mid range doses makes me feel really good for a while, then really toxic. I've always put this down to mobilization of metals/toxins. Cpn was discussed in relation to MS on a program on TV last night http://forums.phoenixrising.me/index.php?threads/ms-chlamydia-pneumoniae.19033/ Thoughts anyone?