
08/24/2025
Parasites 101
What is a parasite? A parasite is an organism that lives off another organism (host). Parasites use the host's body for nourishment and shelter. Does everyone have parasites that need cleansed from the gut? Short answer is no. Doing parasite cleanses when no parasites are present can strip the gut of beneficial bacteria. This leads to a host of health complications.
So, let’s take a look at the straight talk about parasites. A healthy human body contains billions of good parasites like bacteria that are essential for functions like digestion and immune system response. Most harmful intestinal parasites are transmitted through ingesting soil contaminated with f***s, ingesting p**p, or water containing the parasite. I hear you…gross! In some cases, parasitic infection is spread by insects (in tropical areas).
Most people get intestinal parasites by ingesting eggs that get passed along through p**p. The eggs are microscopic, so there’s no way to know you’re swallowing them. Thorough hand washing is a must! Some parasite eggs can survive on surfaces for a long time. If you touch the surface and then touch your mouth, you can get infected.
Other ways of becoming infected include consuming contaminated water. Water sources include public and private drinking water sources, pools, rivers and lakes. Also, avoid consuming foods grown in contaminated soil (fertilized with human waste). Likewise, eating raw or undercooking meats with parasites will lead to transmission.
Animals can carry parasitic eggs in their fur. For example, fleas can transmit tapeworm eggs to the host. In addition, parasites can be transmitted through the handling of animal waste and not utilizing protective gloves or frequent hand washing.
Hygiene plays an important role here. Use clean water and soap to keep your hands free of parasite eggs. Wash your hands after going to the bathroom, before handling food or eating, and after cleaning up after children (dirty diapers) or pets. Likewise, thoroughly wash hands and arms when gardening or working with soil.
Symptoms of parasite infection can include abdominal pain, bloating, gas, diarrhea, a**l itching, unexplained weight loss and exhaustion. However, these are common to a number of other health conditions.
Diagnosis of parasite infection must come from reliable testing vs. vague symptom a**lysis. F***l exams to look for parasites or parasite eggs. Both endoscopic exam of the intestines as well as colonoscopy reveal evidence of parasites. Again, simple blood work can reveal specific types of parasitic infections. Finally, imaging scans can detect. Parasite-related organ damage.
Are internet parasite cleanses damaging to your health. If you do not have live parasites or eggs in your body, the answer is yes. Many of the herbs utilized in cleanses have toxicity levels in the human body. Likewise, they are designed to strip the intestinal tract—this includes all your beneficial bacteria as well! Some herbs interfere with prescription drugs and other herbs, placing added stress on the body. Unfortunately, some of the herbs used in cleanses are also tainted with heavy metals.
The laxative effect can be dehydrating., creating electrolyte imbalances. Kidney, liver, pancreas damage can occur from cleanses if the is not a need for cleanse. Nutrient depletion can occur due to the bowel flushing before nutrients are absorbed. Most importantly, if not parasites are present, worsening of underlying conditions can occur.
If you are concerned about parasites, please have physical testing (even if just bloodwork or stool sample) before you jump on the cleanse bandwagon. Even in natural approaches, treatments are dictated by specific confirmed parasites.
Dianna Richardson, ND August 2025
References:
Halliez MC, Buret AG. Gastrointestinal Parasites and the Neural Control of Gut Functions. Front Cell Neurosci. 2015 Nov 25;9:452.
Strothmann AL, Berne MEA, Capella GA, de Moura MQ, da Silva Terto WD, da Costa CM, Pinheiro NB. Antiparasitic treatment using herbs and spices: A review of the literature of the phytotherapy. Braz J Vet Med. 2022 Sep 11;44
Pereira MA, Santos-Gomes G. Parasitic Infection and Immunity-A Special Biomedicines Issue. Biomedicines. 2022 Oct 12;10(10):2547
National Center for Complementary and Integrative Health. "Detoxes" and "cleanses": what you need to know.
Strothmann AL, Berne MEA, Capella GA, de Moura MQ, da Silva Terto WD, da Costa CM, et al. Antiparasitic treatment using herbs and spices: A review of the literature of the phytotherapy. Braz J Vet Med. 2022 Sep 11;44:e004722.
Batiha GES, Olatunde A, El-Mleeh, et al. Bioactive compounds, pharmacological actions, and pharmacokinetics of wormwood (Artemisia absinthium). Antibiotics (Basel). 2020;9(6):353.