​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​MULTIPLE CHEMICAL SENSITIVITY​​​​​​​​​​​​​​


As of 2020, more than 1.1 million Canadians had been diagnosed with MCS. Internationally, more than 61 million people just in the US, UK, Sweden and Australia have been diagnosed. MCS is widespread and not rare.
Multiple Chemical Sensitivity (MCS), is a complex medical condition, as it involves:

  • Chronic/long term cellular injury by multiple synthetic chemicals at low dosages
  • Multiple bodily systems (thus many combinations of symptoms) such as neurological, immunological, allergic, gastrointestinal
  • Symptoms can recur as acute flare up episodes based on (low level) chemical exposures that do not provoke symptoms in other people
The sensitization first experienced in MCS are often caused by chemicals that are commonly found around us and in products that are used in everyday life. These include:

  • Molds and mycotoxins
  • Pesticides / insecticides
  • Off – gassing chemicals: solvents, adhesives, stains, varnishes, paints, new carpet, new furniture, new construction building material
  • Auto exhaust, gasoline, diesel
  • Cleaning agents – chlorine, laundry detergents, fabric softeners
  • Personal care products – perfume, fragrances, soaps, hand sanitizers
  • Printer cartridge ink
  • Flame retardants
  • Phthalates / liquid plastics
  • Cigarette smoke
  • Heavy metals (mercury, cadmium, and lead)


Symptoms of MCS can arise gradually over time from repeated low-level chemical exposures or, in some instances immediately following a single unexpectedly high-level exposure.

The severity of symptoms can range from mild to debilitating. Early, milder stages are often perceived to be allergies, and go undiagnosed. Moderate to severe MCS involves greater intensity and duration of symptoms. Severe MCS brings intense reactions, great physical suffering and can be life-threatening for some people when exposed to some chemicals. 

These symptoms can force one to withdraw from social spaces – work, education, recreation, medical facilities and even family homes – which today are full of synthetic chemicals.

Common symptoms of Multiple Chemical Sensitivity are:

  • Headaches / migraines
  • Brain Fog / feel “spacey”, “groggy”, or dull
  • Memory Loss or confusion
  • Difficulty concentrating
  • Mood changes
  • Dizziness
  • Nausea
  • Fatigue
  • Neuropathy – numbness and tingling sensations
  • Insomnia – poor sleep quality
  • Asthma, difficulty breathing
  • Nasal congestion / sneezing
  • Nasal congestion / sneezing
  • Sore throat
  • Skin rashes / itching
  • Muscle and joint aches
  • Anxiety / pain attacks
  • Chest Pain / fast or irregular heart beat


People with Environmental Sensitivities (ES) often visit several doctors before being diagnosed. This is because the collection of symptoms varies from person to person; there is no one standard medical test used for diagnosis; and there are no consistent abnormal findings from physical exams or abnormal results from lab tests. This can lead to a feeling of overwhelm and disheartening in people experiencing symptoms of Multiple Chemical Sensitivity.  

The first step to treating Environmental Illness such as Multiple Chemical Sensitivity is speaking with a health professional that recognizes the symptoms associated with this complex medical condition. 

At EnviroMed Clinic, we have years of experience diagnosing and treating a variety of Environmental Illnesses including MCS. We see MCS as a complex bio-physical-toxicological disorder, based in neurological and immunological dysfunction due to toxic exposure, and thus an “environmental” disorder.  

From a Naturopathic and functional medicine perspective, we understand that MCS is not a standalone entity but rather a manifestation of underlying imbalances within the body. This could stem from genetic predispositions, compromised detoxification pathways, dysregulated immune responses, or a heightened sensitivity of the nervous system. Moreover, environmental factors such as chronic stress, poor diet, and cumulative toxic exposures can exacerbate these vulnerabilities, tipping the scales towards MCS. 

In addressing MCS, our approach must be multifaceted and holistic, addressing the root causes while alleviating symptoms and supporting the body’s innate healing capacities. 

We have found that supporting the body to eliminate the toxins and reduce the Total Body Burden have helped reduce the intensity, frequency or resolve MCS symptoms. Common treatments for MCS and Environmental illnesses include: 

  • Reduce exposure to environmental toxins through lifestyle modifications
  • Optimizing nutrition through diet to enhance detoxification pathways 
  • Cleansing specifically for chemicals causing chemical sensitivity 
  • Deep cleansing IV nutrient drip therapy and colon hydrotherapy combination 
  • Supporting detoxification pathways by using natural medicines & supplements
  • Implementing mind-body techniques to mitigate the effects of stress on the nervous system