Theola Walden Baker wrote:
>
> Irritable Bowel Syndrome
In IBS, the circular and longitudinal muscles of the small
bowel and sigmoid are particularly susceptible to motor
abnormalities. The proximal small bowel appears to be
hyperreactive to food or parasympathomimetic drugs. [ie,
hypermotility I think - diarrhea only]
http://www.merck.com/pubs/mmanual/section3/chapter32/32a.htm
> Inflammatory Bowel Disease
> Colitis
> Crohn's Disease
Crohn's disease and ulcerative colitis are characterized by
chronic inflammation at various sites in the GI tract. Both
cause diarrhea, which may be profuse and bloody. Certain
differences in disease patterns justify a distinction
between Crohn's        disease and ulcerative colitis,
although groupings and subgroupings are somewhat artificial.
Some cases are difficult, if not impossible, to classify.
The term colitis applies only to inflammatory disease of the
colon (eg, ulcerative, granulomatous, ischemic, radiation,
or infectious colitis). Spastic or mucous colitis is a
misnomer often applied to a functional disorder that is more
properly described as irritable bowel syndrome
[apparently inflammatory is applied to bowel disease
involving inflammation and includes both Crohn's & colitis
and others and are difficult to differentiate - diarrhea
would include blood, mucus etc}
http://www.merck.com/pubs/mmanual/section3/chapter31/31a.htm
> Celiac Disease
A chronic intestinal malabsorption disorder caused by
intolerance to gluten...
This hereditary disorder is caused by sensitivity to the
gliadin fraction of gluten, a cereal protein found in wheat
and rye and less so in barley and oats. Gliadin acts as an
antigen and forms an immune complex in the intestinal
mucosa, promoting        aggregation of killer lymphocytes.
These lymphocytes cause mucosal damage with loss of villi
and proliferation of crypt cells.
Celiac disease may be asymptomatic. Most patients have
steatorrhea [fat in stool] that can range from mild to
massive (7 to 50 g [20 to 150 mEq] fatty acid/day). Celiac
disease may cause short stature, infertility, or recurrent
aphthous
stomatitis or be associated with dermatitis herpetiformis,
sometimes without diarrhea. There is no typical
presentation. Many symptoms (eg, anemia, weight loss, bone
pain, paresthesia, edema, skin disorders) are secondary to
deficiency states. If overt alimentary symptoms (eg,
diarrhea, abdominal discomfort, distention) also occur, the
diagnosis is unlikely to be missed.
[ie, sometimes bowel symptoms but also showing many systemic
troubles]
http://www.merck.com/pubs/mmanual/section3/chapter30/30c.htm

Personally, I would be quite surprised if many of these
differentials that do not have a readily apparent causitive
factor (as do infective, ischemic or radiation) were NOT
related to dietary intake of large amounts og grain.  JMHO
from my own experience.
--
   Elisi Tsayonah, AniWodi, ghigau,
   St Francis River Band of Cherokee