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Is a Parasite Cleanse the Answer to all of our Problems?

In the world of naturopathic/ alternative/holistic medicine, we see trends come and go. Recently, I have observed a significant number of patients coming to my office curious about pursuing a parasite cleanse they have found online, some of which are quite expensive and aggressive. It’s made me curious about what’s caused this surge in curiosity. My gut (pun intended :) tells me that it has to do with information being delivered on social media and/or very well-marketed supplements. The internet and the world of social media can offer a wealth of knowledge but when it comes to alternative medicine, it can also be a very confusing place.

When we think of parasites, images of harm and disease may come to mind. However, not all parasites are malevolent invaders. In the intricate world of the human microbiome, there exists a fascinating and lesser-known category of symbiotic parasites. These tiny organisms live in harmony with our bodies, contributing to our overall health and well-being. In this blog post, we'll explore the intriguing world of symbiotic parasites residing in the human microbiome.

What are parasites:

A parasite is an organism that lives in or on another organism, known as the host, and derives its sustenance from the host's body. This relationship is often detrimental to the host, which is harmed in some way as a result of the parasite's presence. Parasites can come in various forms, including:

1. Ectoparasites: These parasites live on the external surface of the host, such as fleas, ticks, lice, and mites, which can infest the skin or fur of animals, including humans.

2. Endoparasites: These parasites live inside the host's body. They can be found in various organs or tissues, and examples include intestinal worms, tapeworms, and various protozoa.

3. Hemiparasites: Hemiparasites are plants that partially rely on other plants for nutrients. They have their own chlorophyll for photosynthesis but tap into the host plant's roots to obtain water and minerals. Mistletoe is an example of a hemiparasitic plant.

Parasites may harm their hosts in various ways, such as by causing diseases, sapping nutrients, or interfering with the host's normal physiological functions. It's important to note that not all relationships between organisms are considered parasitic. Some are mutualistic, where both the host and the partner organism benefit from the relationship. Understanding the dynamics of parasitism is crucial in the fields of biology, ecology, and medicine as it has significant implications for the health of various organisms and ecosystems.

What is a parasite cleanse:

Parasite cleanses are wellness regimens that aim to eliminate harmful parasites from the body using natural and holistic methods. These cleanses typically involve herbal supplements and other nutrients that support the body's elimination of parasites. They claim to support GI health, energy levels, weight management, and more.

Like many things in natural medicine, the herbs used to treat parasites may also have some effectiveness at lowering other microbes, like beneficial bacteria. This is something to be mindful of since many supplements are jam-packed with an aggressive antimicrobial approach that can do more harm than good depending on the individual.

If we are really practicing natural medicine, the goal is to take a comprehensive and individualized approach. It is also our philosophy to treat by following the path of least resistance being mindful to never do anything that could cause harm. So before taking on an aggressive parasite cleanse, chat with your healthcare provider to make sure it’s right for you. There may also be a gentler, more appropriate approach to suit your specific needs.

Let’s chat a bit more about parasites and how they interact with the human microbiome.

Understanding the Human Microbiome

Before we delve into symbiotic parasites, it's crucial to grasp the concept of the human microbiome. The microbiome refers to the vast collection of microorganisms, including bacteria, viruses, fungi, and even parasites, living in and on our bodies. These microorganisms play a vital role in our health, influencing our digestion, immune system, and even mental well-being.

The Symbiotic Parasites in Our Midst

1. Helminths: Helminths, such as intestinal worms, are one of the most well-known symbiotic parasites in the human microbiome. They've coexisted with humans for thousands of years and have evolved to live within us without causing harm. In some cases, helminths have been found to modulate the immune system and reduce the risk of autoimmune diseases.

2. Protozoa: Certain protozoa, like Entamoeba gingivalis, reside in the human mouth and are part of the oral microbiome. These symbiotic parasites may help maintain oral health by regulating bacterial populations and preventing harmful bacteria from taking over.

The Role of Symbiotic Parasites

1. Immune System Regulation: Symbiotic parasites can stimulate our immune systems, teaching them how to distinguish between harmful invaders and the body's own tissues. This education helps reduce the risk of autoimmune diseases.

2. Microbiome Balance: Parasites in the human microbiome can help maintain the balance of other microorganisms in the body. They prevent overgrowth of harmful bacteria and promote the growth of beneficial ones.

3. Nutrient Absorption: Some symbiotic parasites may aid in nutrient absorption, ensuring we receive essential vitamins and minerals from our diets.

The Quest for Therapeutic Use:

Researchers are increasingly interested in harnessing the potential of symbiotic parasites for therapeutic purposes. This emerging field of study, known as helminthic therapy, explores the controlled use of helminths to treat various medical conditions. Early research suggests that helminths may hold promise in treating inflammatory bowel diseases, allergies, and autoimmune disorders.

How do we test for parasites:

We can test for parasites with stool samples either through standard, conventional labs or through more functional, comprehensive labs. My favorite lab to use is the GI Map by Diagnostic Solutions which also gives us information about our good bacteria, harmful (or pathogenic) bacteria, opportunistic bacteria (which could act pathogenic if they overgrow), yeast, parasites, viruses, and other markers of intestinal health.


While some parasites are frankly harmful to the human microbiome, there are also parasites that are not, and some that actually benefit our health. Symbiotic parasites in the human microbiome offer a unique perspective on the complex relationship between microorganisms and our bodies. These organisms, traditionally associated with harm, have shown that not all parasites are necessarily detrimental. Instead, they can play a pivotal role in maintaining our health and well-being. As our understanding of the human microbiome deepens, the potential for harnessing symbiotic parasites for therapeutic use and promoting overall health is an exciting frontier in medical research. It's a reminder that nature's intricacies continue to astonish and reveal new possibilities for our well-being.

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