What Causes Parasitic Gastrointestinal Infections?

The parasitic gastrointestinal infections are actually caused by parasites. And millions of people not just overseas but here in the US have parasites and don't know it. So, these organisms can live inside our digestive tracts for years and can go undetected. They can cause a number of conditions from irritable bowel syndrome to gas, bloating, constipation, diarrhea, abdominal pain, nausea, vomiting, weight loss.

Most people are exposed through contaminated water. We know that a lot of city water supplies are older and they don't have adequate filtration. We also know a lot of these parasites aren't killed of by chlorine in the water, so contaminated water is a huge way in which most of us become infected.

Another way is contaminated fruits and vegetables. So, if contaminated feces containing parasites has come into contact with your food and you eat it, it's a very common way for you yourself to become infected.