_edited.png)
Hypothyroidism
Low thyroid function slows every cell, including the brain. We read the full thyroid conversation, from brain signal to cell, and address the gut, stress axis, nutrients, and toxic load upstream.
What you may be noticing
You are cold, tired, and slow. Your hair sheds, your skin and nails are dry, and constipation is a constant companion. Your thinking feels thick, your mood flat, and weight climbs despite effort. You may already take thyroid medication and still feel only partly better.
Why it is rarely one thing
Thyroid health is a chain of communication that begins in the brain. The hypothalamus releases TRH, the pituitary answers with TSH, the gland produces mostly T4, and your tissues convert T4 into T3, the active form. Then each cell must receive that signal through its receptors. The gland responds to instructions; it rarely acts alone.
Checking TSH alone sees only one link. You can have a normal TSH with poor conversion, high reverse T3, or rising antibodies. In most of the developed world the leading cause of low thyroid function is autoimmune thyroiditis, often called Hashimoto, an immune process that hormone replacement alone does not address.
Conversion depends on what sits upstream: a calm stress axis, steady blood sugar, adequate selenium, zinc, and iron, a healthy liver and gut, and a manageable toxic load. Halogens, heavy metals, and endocrine-disrupting chemicals can interfere with iodine handling and conversion. That is why I address the gut before I ask metabolism and the thyroid to change.
When thyroid function is clearly low, thyroid hormone replacement is the established treatment, and nutrients cannot replace it. Comprehensive care works alongside it to improve how your body makes, converts, and uses that hormone. I coordinate with your prescribing clinician, and medication decisions remain with them.
Patterns we look for
- TSH, free T4, free T3, and reverse T3, read together as one pattern.
- Thyroid antibodies: TPO and thyroglobulin.
- Selenium, zinc, iron, ferritin, and vitamin D.
- Cortisol rhythm. High stress output raises reverse T3.
- Fasting insulin, glucose, HbA1c, and inflammation.
- Gut health, celiac disease, and absorption, which also affect how well thyroid medication is absorbed.
- Liver function, where much conversion happens.
- Toxic burden: halogens, heavy metals, and endocrine disruptors.
- Lymphatic congestion around the neck.
- Brain effects: processing speed, reflexes, eye movements, and mood.
How I evaluate it
A comprehensive functional neurological exam shows how thyroid status is affecting your nervous system: reflex return speed, eye movement velocity, balance, and cognitive stamina. I also examine the neck and lymph nodes.
Labs always include a comprehensive thyroid panel with antibodies, drawn in the morning with biotin paused beforehand, plus fasting insulin, glucose, HbA1c, hs-CRP, homocysteine, iron studies, a lipid panel, and vitamin D. Cortisol rhythm, stool testing, and toxic burden testing are added when your history points there.
How we address it
- Build the foundation first: circadian rhythm, morning light, steady meals, and a calmer nervous system.
- Open drainage pathways, including gentle lymphatic work for the neck, bowel regularity, and liver support.
- Heal the gut and screen for celiac disease and absorption issues before expecting metabolism to shift.
- Restore selenium, zinc, iron, and other conversion nutrients with targeted categories of support.
- Calm the immune system when antibodies are present.
- Reduce toxic and endocrine-disrupting exposures at home.
- Support brain function with neurological rehabilitation as energy returns, coordinating any medication changes with your prescriber.
When every link from brain to cell is supported, warmth, energy, and clarity can return.
Book your Comprehensive Functional Medicine Eval/Neurological Exam today to discover what the contributing root causes are that are underlying your health concerns.