The bowel tolerance forum is devoted to the classic paper by Robert F Cathcart, III, M.D.
VITAMIN C, TITRATING TO BOWEL TOLERANCE, ANASCORBEMIA, AND ACUTE INDUCED SCURVY
If you are interested in this subject, the first thing you should do is read the Catchart paper.
Owen R. Fonorow, Orthopath® (Orthomolecular Naturopath)
® is a trademark of the Institute for Orthomolecular Studies