excessive consumption of tea, coffee, carbonated beverages, and simple sugars,
infectious diarrhea from micro-organisms (such as giardia parasites),
inflammatory bowel disease- IBD (a much more serious disorder than Irritable Bowel Syndrome - IBS) and lactose intolerance,
laxative abuse,
diverticular disease,
intestinal candidiasis,
disturbed bacterial flora (dysbiosis),
malabsorption diseases such as pancreatic insufficiency and celiac/sprue,
metabolic diso