Thyroid Health: Why Your Labs May Be "Normal" But You're Not
Your thyroid controls metabolism, energy, mood, and more. Yet standard testing often misses dysfunction. Learn what comprehensive assessment reveals.
Thyroid symptoms with "normal" labs?
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The Thyroid: Your Metabolic Thermostat
Your thyroid gland produces hormones that affect virtually every cell in your body — metabolic rate, body temperature, heart rate, brain function, and energy production. When it's underperforming, everything slows down.
What Thyroid Hormones Control
Energy & Metabolism
Low thyroid = slow metabolism. Every cell produces less energy, causing fatigue and weight gain.
Brain Function
Thyroid hormones are critical for cognition. Low levels cause brain fog and depression.
Cardiovascular Health
Thyroid affects heart rate and cholesterol. Low thyroid raises cardiovascular risk.
Weight & Body Comp
Metabolism slows, making weight loss difficult even with diet and exercise.
Common Hypothyroid Symptoms
Why Standard Testing Falls Short
The Problem: TSH-Only Testing
Most doctors only test TSH. If it's in the "normal" range, you're told your thyroid is fine. But this misses poor T4-to-T3 conversion, high reverse T3, and autoimmune antibodies attacking your thyroid.
What Complete Testing Includes
The Lab Range Problem
"Normal" lab ranges are based on population averages, including many unhealthy people. A TSH of 4.0 is "normal" but may not be optimal. Many feel best with TSH between 1-2.
5 Root Causes of Thyroid Dysfunction
Hashimoto's Thyroiditis
The #1 cause of hypothyroidism is autoimmune — your immune system attacking your thyroid. Up to 90% of hypothyroidism cases are Hashimoto's, yet many are never tested for antibodies.
Nutrient Deficiencies
Thyroid hormone production requires iodine, selenium, zinc, iron, vitamin D, and B vitamins. Deficiencies in any of these impair function.
Poor T4-to-T3 Conversion
Your body converts T4 to active T3. This conversion can be impaired by stress, inflammation, gut issues, and liver dysfunction.
Chronic Stress
High cortisol reduces T4-to-T3 conversion and increases reverse T3 (which blocks T3). Stress literally slows your metabolism.
Gut Health
20% of T4-to-T3 conversion happens in the gut. Dysbiosis and inflammation impair this process. Gut issues also drive autoimmunity.
Natural Thyroid Support Strategies
Get Complete Testing
Request full panel: Free T3, Reverse T3, and antibodies
Address Autoimmunity
If Hashimoto's, focus on reducing inflammation
Support Conversion
Selenium, zinc, and stress reduction help T4→T3
Check Iodine
Test levels first — excess can worsen Hashimoto's
Heal the Gut
Gut health affects conversion and autoimmunity
Manage Stress
Chronic stress impairs thyroid at multiple levels
Thyroid-Supporting Nutrients
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