Bacteria, viruses, fungi, parasites—there are many types of harmful organisms and nearly everyone is affected at some point in their life. Although they share a common name, harmful organisms have different effects on the body. Here, we’ll look at harmful organisms that can affect your well-being by targeting and disrupting gut health specifically.
This is a good time to mention that you probably shouldn’t eat while reading this article. Just trust me.
What Are Harmful Organisms?
Harmful organisms are organisms that live off another organism by living on or in them, stealing nutrients, releasing waste, and negatively affecting the overall health of the host organism.Harmful organisms have plagued humans since the beginning of time, references even appear in some of our oldest written records.
Harmful organisms have plagued humans since the beginning of time, references even appear in some of our oldest written records. Harmful organisms are present everywhere, from developing nations to those considered first-world.
What Is “The Gut?”
The human digestive tract is a complex system comprised of many parts that, together, function as a single unit. This includes organs, enzymes, bacteria (commonly referred to as the gut microbiota), and all the other components that collectively make up what we know as “the gut.” In many ways, it can be considered an ecosystem.
One truth I’ve observed again and again is that gut health is closely tied to overall health. When your gut is vibrant, so are you. When it’s not, neither are you. In fact, when gut function is disrupted, every part of the body is negatively affected. It’s a reality that makes gut-targeting harmful organisms that target the gut especially devastating.
Which Harmful Organisms Affect the Gut?
The gut is home to many organisms. Many, like probiotics, are absolutely essential to your health, others are detrimental. The two most common organisms that prey on the gut are protozoa and helminth worms.
Protozoa are microscopic, one-celled organisms; there are about 70 species that can affect humans. Some protozoa can form protective “shells” called cysts where they can lay dormant for years before striking. Cysts even allow protozoa to survive outside a host for a time, meaning they may form in one host only to be transferred to and infect another.
Helminth worms are a bigger threat, in terms of species (nearly 300 types can affect humans) and size—-adult helminths range in size from under a millimeter to over a meter in length. That’s not a misprint—over a meter, in your body.
Until recently, we thought there were two major varieties of helminth worms—roundworms (nematodes) and flatworms (platyhelminths). Flatworms include tapeworms (cestodes) and flukes (trematodes).[7, 8] Researchers have also discovered an entirely new type of helminth called ropeworm.Ropeworms can grow to a meter long and have a lumpy, rope-like shape. They are often mistaken for feces or mucus and go undetected.
How Do Harmful Organisms Affect Gut Health?
Protozoa are aggressive and attack quickly. In the human body, protozoa multiply rapidly in a very short period of time.[10,11] Because of this rapid growth, protozoa can be overwhelming and, in the worst situations, be deadly. Symptoms vary by species of protozoa but typically include diarrhea and stomach troubles.
Worms, on the other hand, live long and grow slowly. They attach to the intestinal lining or burrow deep into tissue. There, they steal nutrients and cause intestinal obstruction, often producing chronic, gradually-worsening health conditions such as inflammation, edema, anemia, lesions, granuloma, fibrosis, hypertension, and organ malfunction. In children, helminths can cripple the proper development of the body and brain. The good news, if there is any, is that, unlike protozoa, helminths cannot multiply within the human body.
How to Avoid Harmful Organisms
Harmful organisms are transmitted through fecal contamination of food or water, or by person-to-person contact.[10,12] If your system is overtaken by protozoa, a problem will be apparent. Worms, however, can live inside the human gastrointestinal tract for years without causing symptoms. When symptoms do appear, they tend to surface in the form of digestive issues.
Proactive measures are the best defense against all types of harmful organisms. Strategies for avoiding harmful organisms include:
- Thoroughly wash fruits and vegetables before eating.
- Be cautious about the origin of your food (especially prepared foods).
- I advocate a vegan raw-food diet. But, if you choose to consume meat, make sure it is cooked thoroughly and appropriately.
- Wash your hands with soap and water before handling food or eating.
- If you grow your own produce, use safe, organic methods of pest control.
- Protect yourself from parasite-friendly environments. For example, don’t walk barefoot through puddles.
- If you have indoor pets, limit their outdoor time and make sure to groom them regularly.
- Regularly cleanse your living environment.
Have harmful organisms negatively affected your life? Leave a comment below and share your experience with us.
- “Parasites and Foodborne Illness.” United States Department of Agriculture Food Safety and Inspection Service. USDA.gov, 7 Aug. 2013. Web. 06 June 2016.
- Cox, F. E. G. “History of Human Parasitology.” Clinical Microbiology Reviews15.4 (2002): 595–612. PMC. Web. 6 June 2016.
- ZACCONE, P et al. “Parasitic Worms and Inflammatory Diseases.” Parasite Immunology 28.10 (2006): 515–523. PMC. Web. 7 June 2016.
- ”Intestinal Parasites.” University of Maryland Medical Center. University of Maryland, 8 Apr. 2014. Web. 07 June 2016.
- Yaeger RG. Protozoa: Structure, Classification, Growth, and Development. In: Baron S, editor. Medical Microbiology. 4th edition. Galveston (TX): University of Texas Medical Branch at Galveston; 1996. Chapter 77.
- Wakelin D. Helminths: Pathogenesis and Defenses. In: Baron S, editor. “Medical Microbiology. 4th edition.” Galveston (TX): University of Texas Medical Branch at Galveston; 1996. Chapter 87
- “Helminth Parasites.” PARA-SITE. The Australian Society for Parasitology, n.d. Web. 07 June 2016.
- Haque, Rashidul. “Human Intestinal Parasites.” Journal of Health, Population, and Nutrition 25.4 (2007): 387–391. Web.
- Volinsky, Alex A., et al. “Development stages of the” rope” human intestinal parasite.” arXiv preprint arXiv:1301.2845 (2013).
- “About Parasites.” Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 05 Mar. 2014. Web. 07 June 2016.
- “Protozoan Parasites.” PARA-SITE. The Australian Society for Parasitology, n.d. Web. 07 June 2016.
- Lee, Marilyn B. “Everyday and exotic foodborne parasites” The Canadian Journal of Infectious Diseases 11.3 (2000): 155–158. Web.
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