Wondering what the thyroid levels from your thyroid lab test mean? I’ll break down what the different thyroid hormones indicate and dispel some misconceptions about which levels actually require medication.  If you have any additional questions you would like answered in the future, let me know in the comments! Watch/Read Next… Optimal Thyroid Levels: https://drruscio.com/optimal-thyroid-levels  Hyperthyroidism vs Hypothyroidism: https://drruscio.com/hyperthyroidism-vs-hypothyroidism/  Early Signs of Thyroid Problems: https://drruscio.com/what-are-early-warning-signs-of-thyroid-problems/  How to Get Off Thyroid Medication Naturally: https://drruscio.com/how-to-get-off-thyroid-medication/  Thyroid & Hair Loss: https://drruscio.com/thyroid-hair-loss/  Why Your Thyroid Diagnosis Might Be a MISDiagnosis: https://drruscio.com/thyroid-diagnosis/    Timestamps 00:00 Intro to the thyroid   03:57 TSH 05:02 Free T4  05:59 Free T3  07:07 TPO (thyroid antibodies)  08:13 Hashimoto’s  10:00 TG (thyroglobulin)  12:58 Defining hypothyroidism 13:27 Defining hyperthyroidism  13:48 The grey area “Sluggish thyroid” 18:07 Treatments  20:20 Where symptoms can come from 24:25 Thyroid lab interpretation guide   Featured Studies  Physiology, Thyroid: https://pubmed.ncbi.nlm.nih.gov/30137850/  Serum TSH, T(4), and thyroid antibodies in the United States population (1988 to 1994): National Health and Nutrition Examination Survey (NHANES III): https://pubmed.ncbi.nlm.nih.gov/11836274/  Serum thyrotrophin and circulating thyroglobulin and thyroid microsomal antibodies in a Finnish population: https://pubmed.ncbi.nlm.nih.gov/760358/  The prevalence of undiagnosed thyroid disorders in a previously iodine-deficient area: https://pubmed.ncbi.nlm.nih.gov/14558922/  Hypothyroidism Prevalence in the United States: A Retrospective Study Combining National Health and Nutrition Examination Survey and Claims Data, 2009-2019: https://pubmed.ncbi.nlm.nih.gov/36466005/  Correlation between sonography and antibody activity in patients with Hashimoto thyroiditis: https://pubmed.ncbi.nlm.nih.gov/24154902/  Laboratory Testing in Thyroid Conditions - Pitfalls and Clinical Utility: https://pubmed.ncbi.nlm.nih.gov/30215224/  Hashimoto thyroiditis: an evidence-based guide to etiology, diagnosis and treatment: https://pubmed.ncbi.nlm.nih.gov/35243857/  Anti-Thyroperoxidase Antibody Levels >500 IU/ml Indicate a Moderately Increased Risk for Developing Hypothyroidism in Autoimmune Thyroiditis: https://pubmed.ncbi.nlm.nih.gov/27607246/  Hyperthyroidism: https://pubmed.ncbi.nlm.nih.gov/32206604/  Subclinical Hypothyroidism: https://pubmed.ncbi.nlm.nih.gov/30725655/  Transient high thyroid stimulating hormone and hypothyroidism incidence during follow up of subclinical hypothyroidism: https://pubmed.ncbi.nlm.nih.gov/34879182/  Association of Thyroid Hormone Therapy With Quality of Life and Thyroid-Related Symptoms in Patients With Subclinical Hypothyroidism: A Systematic Review and Meta-analysis: https://pubmed.ncbi.nlm.nih.gov/30285179/  Treating hypothyroidism is not always easy: When to treat subclinical hypothyroidism, TSH goals in the elderly, and alternatives to levothyroxine monotherapy: https://pubmed.ncbi.nlm.nih.gov/34766382/  Symptoms Originally Attributed to Thyroid Dysfunction Were Instead Caused by Suboptimal Gastrointestinal Health: A Case Series and Literature Review: https://pubmed.ncbi.nlm.nih.gov/35999903/  The Relationship between Gastrointestinal Health, Micronutrient Concentrations, and Autoimmunity: A Focus on the Thyroid: https://pubmed.ncbi.nlm.nih.gov/36079838/  Combined treatment with Myo-inositol and selenium ensures euthyroidism in subclinical hypothyroidism patients with autoimmune thyroiditis: https://pubmed.ncbi.nlm.nih.gov/24224112/  Effects of vitamin D on thyroid autoimmunity markers in Hashimoto's thyroiditis: systematic review and meta-analysis: https://pubmed.ncbi.nlm.nih.gov/34871506/  Probio