UPDATED 2023 - Which Thyroid Hormone is Best for Hashimoto's: Synthetic vs Bio-Identical

Опубликовано: 17 Июль 2026
на канале: Dr. David J. Clark, DC
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http://bit.ly/drclarkthyroid In 2011 I made a video on this topic that was pretty popular/controversial. Have I changed my mind about Synthetic vs. Bio-identical in the last 12 years? I get asked about synthetic vs. Bio-idential at least a few times per week by my patients. If you have Hashimoto's...take thyroid hormones...and STILL suffer low thyroid symptoms you will definitely find this video helpful.

Hashimoto's Low Thyroid/Hypothyroid Symptoms
• Fatigue
• Hair loss
• Dry Skin
• Constipation
• Depression and Anxiety
• Brain Fog
• Weight Gain
• Joint and Muscle Pain
• Sleep Problems

00:00 - Intro
00:30 - Why does anyone care about synthetic vs. bio-identical?
01:02 - What is hypothyroidism?
01:10 - There are only 2 kinds of thyroid problems
01:30 - What does it mean when TSH is high?
01:46 - #1 Most common cause of hypothyroidism
02:21 - Hashimoto's causes THIS kind of problem
02:30 - what is a hormone usage problem?
02:49 - Normal TSH and T4 but STILL feel bad?
03:08 - 90% of my Hashimoto's patients have THIS in common
03:20 - #1 most common cause of a usage problem
03:38 - Breakdown of synthetic T4 and T3 options
03:53 - Some people do just fine taking this
04:07 - A huge number of Hashimoto's patients STILL have these symptoms
04:26 - How I approach Hashimoto's patients who still have low thyroid symptoms
04:54 - The argument FOR bio-identical thyroid hormones
05:40 - Is taking T3 even appropriate?
06:18 - Is a conversion problem with Reverse T3 real?
07:00 - Quick Review
08:12 - The real question your doctor needs to answer
09:29 - My final answer to the question about synthetic vs. bio-identical

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★ New uploads on "Neuro-Metabolic Mondays" and "Thyroid Thursdays"

I made this channel because millions of people are suffering with chronic neurological and metabolic problems like autoimmune conditions, diabetes, hypothyroidism, Hashimoto's, and vertigo/dizziness/balance problems. These men, women and children need someone they can trust to keep up to date with current research and scientific findings...and make this complex information easy to understand and use.

You can expect videos covering these topics (among others):
• Hashimoto's and Low Thyroid/Hypothyroidism
• Autoimmune conditions (ANA antibodies, Multiple Sclerosis, Lupus, Rheumatoid Arthritis, Mixed Connective Tissue Disease)
• Long COVID, Post COVID Autoimmunity
• Neurodevelopmental Problems (Autism Spectrum Disorders, Seizures)
• Vertigo, Meniere's Disease and other vestibular, dizziness and balance problem
• Neurodegeneration (Alzheimer's disease, Parkinson's Disease)
• Celiac Disease, Gluten Sensitivity, Non-Celiac Wheat Sensitivity

Dr. David Clark, DC
Fellow American College of Functional Neurology
Fellow American College of Clinical Neurochemistry & Nutrition
Fellow American Board of Brain Injury & Rehabilitation
Diplomate American Chiropractic Neurology Board
Fellow American Board of Vestibular Rehab
Vestibular Rehab Specialist (ACNB)

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Durham, NC 27713