Hormones, Metabolism & You! 92: Your Hormones Aren’t the Problem - The Shocking Root Cause Behind Fatigue, Weight Gain, and Brain Fog with Dr. Kelly McCann
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What if your hormone symptoms aren’t a hormone problem at all, but warning signs of deeper toxic, gut, and immune stress your body has been carrying for years?
In this powerful episode of Hormones Metabolism in You, Dr. Cassie Smith sits down with Dr. Kelly K. McCann, MD, to unpack why hormone symptoms like fatigue, weight gain, brain fog, mood changes, and stubborn metabolic dysfunction are often not hormone problems at all.
Instead, Dr. McCann explains how these symptoms are signals pointing to deeper root causes such as environmental toxin exposure, mold, gut dysfunction, immune dysregulation, and chronic inflammation. Together, they challenge the conventional approach of treating hormones in isolation and highlight why normal lab results do not always mean the body is functioning optimally.
This conversation explores how everyday exposures from water contamination and plastics to non-stick cookware, pesticides, and personal care products can silently disrupt thyroid function, metabolism, and hormone signaling. The episode also dives into the critical gut hormone immune connection, mold related illness, nutrient depletion, mitochondrial dysfunction, and the concept of the cell danger response.
About the Guest
Dr. Kelly K. McCann, MD is a board certified physician trained in internal medicine and pediatrics, with advanced training in integrative and functional medicine. Her work focuses on the impact of environmental exposures on human health, including mold illness, chemical toxicity, chronic infections, immune dysregulation, and mast cell activation syndrome.
Dr. McCann specializes in treating complex chronic illness by addressing root causes such as toxic burden, gut permeability, mitochondrial dysfunction, and nervous system imbalance. She is the founder of The Spring Center in Southern California and provides care to patients across multiple states. She also teaches and writes extensively on the intersection of environment, immunity, hormones, and healing.
Key Topics Covered
- Why hormone symptoms are messengers, not the root problem
- Environmental toxins and their impact on thyroid and hormone signaling
- Mold exposure and its role in chronic illness and metabolic dysfunction
- The gut hormone immune axis and why gut health is inseparable from hormone health
- How plastics, PFAS, pesticides, and contaminated water disrupt endocrine function
- Food related mold and toxin exposure, including grains, corn, and peanuts
- Heavy metals, mercury accumulation, and bioaccumulation in the body
- Why many patients struggle despite “normal” lab results
- Critical labs often missed in conventional care, including thyroid conversion markers
- The role of mitochondrial dysfunction and the cell danger response
- Chronic stress, trauma, and nervous system dysregulation in hormone imbalance
- Why perimenopause often reveals accumulated toxic burden
- Small, practical steps to reduce toxic load and support healing
Links & Resources:
Dr. Kelly K. McCann, MD
🔗 Official Website
https://drkellymccann.com/
🔗 The Spring Center
https://thespringcenter.com/
🔗 LinkedIn Profile
https://www.linkedin.com/in/dr-kelly-mccann/
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