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Nicola Ducharme on “MCAS’s Relationship to Lyme Disease and Mold Illness”


Naturopath Nicola Ducharme wrote a blog article called “Mast Cell Activation Syndrome – Relationship to Lyme Disease and Mycotoxin Illness: How to Assess; Nutritional Interventions; and Natural Solutions.”


From the article:

Mast cell activation syndrome, or MCAS, is an immunological condition where the mast cells in the body release excessive amounts of chemical mediators such as histamine, leading to symptoms such as hives, flushing, rashes, swelling, low blood pressure, dizziness, brain fog, breathing difficulties, and even anaphylaxis. 

I have found that mast cell disorders can impact mood, energy,, neurological function and a broad array of other body functions. MCAS can also impact the digestive system, leading to nausea, diarrhea, constipation, bloating, abdominal pain, and intestinal cramping.

Further, MCAS can make one more sensitive to both foods and other substances including herbs, supplements and medications. Thus MCAS must be addressed in these cases in order to be able to treat other issues that might be going on in the body such as infection with chronic Lyme/co-infections, and mycotoxin issues.

MCAS is common in both these issues – Lyme disease and mycotoxin illness. I believe that both illnesses can act as a trigger for MCAS. It becomes a bit of a chicken and egg situation – while Lyme and mycotoxins can cause MCAS, MCAS may prevent an individual from being able to treat the other diseases adequately because of major hypersensitivities it can create to the things that address them. 

Parasites can also be a trigger for MCAS given that mast cells are one of our protective mechanisms for parasites. Recent emerging information also points to EMFs as another significant trigger.


Read The Article


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