Giardiasis does not spread via the bloodstream, nor does it spread to other parts of the gastrointestinal tract, but remains confined to the lumen of the small intestine. Giardia trophozoites absorb their nutrients from the lumen of the small intestine, and are anaerobes.iardiasis does not spread via the bloodstream, nor does it spread to other parts of the gastrointestinal tract, but remains confined to the lumen of the small intestine. Giardia trophozoites absorb their nutrients from the lumen of the small intestine, and are anaerobes.
Glycerin suppositories side effects. The most common side effects of glycerin suppositories are anal irritation, a burning sensation, diarrhea, gas, nausea and abdominal cramps.
If the gastrointestinal tract does not move it through efficiently, gas builds up in the intestines, causing bloating and discomfort. If you frequently experience bloating caused by gas, avoid these habits that increase how much air you swallow. 1  drinking through a straw. 2  chewing gum.ifficult-to-digest foods can cause gassiness and bloating. These are some familiar culprits. 1  Beans and lentils contain indigestible sugars called oligosaccharides. 2  These sugars must be broken down by bacteria in the intestines.