I would like to offer my viewpoint [from both study and experience].
I do believe that ascorbic acid does have a cleansing/detoxifying affect in/on one's body. From my viewpoint, that is a good thing, although I agree, sometimes it should be slowed down.
My own experience surprises me, in that I have gotten to the point where I not only rarely get a "loose stool" but I am even getting the flatus under control, e.g. I am often these days consuming upwards of 80g of ascorbic acid [tablets] per 24 hours, and yet have "relatively" little flatus! Bowel Tolerance for me, more and more, is becoming more of a stomach "thing" than a bowel "thing" [and I am quite pleased with that]. I was admittedly already quite healthy when I started out, in 1994, with Bowel Tolerance dosing [with ascorbic acid powder/crystals (for the first few years)], and I began at around 15g daily, which within months went to 30g daily. I can only surmise this is because I have gotten my GI Tract so well cleaned out, e.g. for the first few years, I had a fair amount of "loose stools" and flatus, and then mostly just a lot of flatus, up until this past year or two.
Do I know for sure that I am not harming myself? No, I do not [although I feel awfully well for one potentially harming himself]. I think [ultimately] every thing in life is a gamble, and you take your best shot. Cathcart's writings, in particular, made perfect sense to me, and I guess you could say that I am staking my health [largely] on them!
Just my viewpoint, Jimmy, as "grist for your mill."
All my best wishes,
JFYI, I have ingested a Bowel Tolerance dose of ascorbic acid [via one gram tablets], in HEALTH, not illness [of which I have had virtually none], basically every day since 1994, amounting to [currently], on average, 75+ grams [daily], in 10 to 15 divided doses.