Intestinal or bowel hyperpermeability, so called leaky gut, has been linked to food allergies and some food intolerances.
en.wikipedia.org Dogs can pick up intestinal parasites from the droppings, most commonly coccidiosis.
wcfcourier.com The causative agents include bezoars, foreign bodies, trauma, intestinal worms, lymphadenitis, and, most commonly, calcified fecal deposits known as appendicoliths or fecaliths.
en.wikipedia.org The most common presenting symptom is painless rectal bleeding such as melaena-like black offensive stools, followed by intestinal obstruction, volvulus and intussusception.
en.wikipedia.org Hence, formula-fed infants have a more complex intestinal microflora than breast-fed infants.
en.wikipedia.org