Here is some interesting information I picked up regarding supplements from a Chemist here... When I moved supplements to after the protocol and stopped coffee, I had the same experience.
thecancerexchange.com/msm_cd/
..."They did some research, though, and found that the Beta 1,3D Glucan immune stimulant is a strong antioxidant also. They were taking it at roughly the same time as the MMS. As soon as they stopped taking the Beta Glucan for a couple of days, the MMS had an immediate effect — diarrhea, cleansing — the whole thing...."
"(Chemist) I am a chemist who bought your (previous edition) book and am receiving your e-newsletter (and I have cancer). I am not surprised to finally read in letter #114 that antioxidants ‘kill’ MMS. They should. And that’s what I have been telling a friend of mine who has lung cancer. However, antioxidants stay in the body for more than three hours. Ideally, if you have enough protection, you should have a more or less permanent steady state of them. The beta-glucan instance, where the people waited three DAYS, certainly suggests this also. I am not sure what the solution to the problem is, but if I were taking MMS (and I intend to) I would stop all antioxidants for a while to let the MMS work unhindered.”