Hi all, since many suffer from intolerances, allergies, weird reactions to food/drugs and GI problems, here are some reasons: - Lack of enzymes to digest food - Lack of Hydrochloric Acid to digest food - Lack of beneficial bacteria to digest food - Intestinal Permeability - Malfunctioning P450 system - Overall lack of energy which would be necessary for proper functioning of organs and physical acvitivity to support the body The first three problems can easily be addressed, unless someone has problems with enzymes, probiotics, HCL etc. . If this is the case it gets much harder to do sth.. The last three problems are much more complicated. In addition to that the problems we experience can be a direct consequences of XMRV and other viruses. When searching Pubmed you find many studies about untreated HIV infection that mention exactly the same problems. Patients soon suffer from a wide variety of GI problems.