• Menu
  • Skip to right header navigation
  • Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Dr Hagmeyer logo

Natural Holistic Treatments for Chronic Disease

  • About
    • Our Approach
  • Wellness Blog
  • Testimonials
  • Contact Us
  • FAQs
  • Shop
  • search
  • Free 15 Minute Consult
  • About
    • Our Approach
  • Wellness Blog
  • Testimonials
  • Contact Us
  • FAQs
  • Shop
  • search
  • Free 15 Minute Consult
  • Start Here
  • Functional Medicine
  • Conditions We Help
  • Services
    • Hormone Testing & Consults
      • Adrenal Testing & Consult
      • Cycling Female Hormone Testing & Consult
      • DUTCH Hormone Test
      • Male Hormone Testing & Consult
      • Menopause Hormone Testing & Consult
      • Thyroid Testing & Consult
    • Gut Testing & Consults
      • Candida and Yeast Testing & Consult
      • GI Map Stool Test & Consult
      • Gluten Sensitivity Testing & Consult
      • Leaky Gut Testing & Consult
      • SIBO Testing & Consult
    • Nutrition & Detoxification Programs
      • Food Intolerance & Food Sensitivity Testing & Consult
      • Methyl Detox Consult
      • OAT Test
      • Optimal Nutritional Program
      • 7-Day Food Diary Review & Consult
      • 30 Day Detox and Reboot Program
    • Autoimmune Disease
      • Autoimmune Disease Consult
    • Troubleshoot Consults
      • Troubleshoot Existing Patient – Lab
      • Troubleshoot Existing Patient – No Lab
    • Personalized Supplementation
      • Child Nutrition & Neurotransmitter Questionnaire
      • Metabolic Assessment Screening & Consult
      • Neurotransmitter Health Assessment Screening Consult
  • Clinical Testing
  • Recipes for Health
  • Quizzes
    • Adrenal Quiz
    • Blood Sugar Hypoglycemia Quiz
    • Candida Quiz
    • Histamine Intolerance/ MCAS Quiz
    • SIBO Quiz
    • Thyroid Quiz
    • Leaky Gut Quiz
    • ADD/ADHD Quiz
    • Mold/Mycotoxin Quiz
  • Affordable Treatment
  • Start Here
  • Functional Medicine
  • Conditions We Help
  • Services
    • Hormone Testing & Consults
      • Adrenal Testing & Consult
      • Cycling Female Hormone Testing & Consult
      • DUTCH Hormone Test
      • Male Hormone Testing & Consult
      • Menopause Hormone Testing & Consult
      • Thyroid Testing & Consult
    • Gut Testing & Consults
      • Candida and Yeast Testing & Consult
      • GI Map Stool Test & Consult
      • Gluten Sensitivity Testing & Consult
      • Leaky Gut Testing & Consult
      • SIBO Testing & Consult
    • Nutrition & Detoxification Programs
      • Food Intolerance & Food Sensitivity Testing & Consult
      • Methyl Detox Consult
      • OAT Test
      • Optimal Nutritional Program
      • 7-Day Food Diary Review & Consult
      • 30 Day Detox and Reboot Program
    • Autoimmune Disease
      • Autoimmune Disease Consult
    • Troubleshoot Consults
      • Troubleshoot Existing Patient – Lab
      • Troubleshoot Existing Patient – No Lab
    • Personalized Supplementation
      • Child Nutrition & Neurotransmitter Questionnaire
      • Metabolic Assessment Screening & Consult
      • Neurotransmitter Health Assessment Screening Consult
  • Clinical Testing
  • Recipes for Health
  • Quizzes
    • Adrenal Quiz
    • Blood Sugar Hypoglycemia Quiz
    • Candida Quiz
    • Histamine Intolerance/ MCAS Quiz
    • SIBO Quiz
    • Thyroid Quiz
    • Leaky Gut Quiz
    • ADD/ADHD Quiz
    • Mold/Mycotoxin Quiz
  • Affordable Treatment

T3 Reverse T3 Ratio- How To Calculate It.

January 4, 2015 //  by Dr Hagmeyer

The thyroid gland is located in the lower part of the neck and it is responsible for the production of  triiodothyronine (T3), thyroxine (T4) and small amounts of rT3 (Reverse T3). Reverse T3 is an isomer of T3 which means it’s molecular structure looks very similar to T3. These hormones are responsible for regulating cell metabolism in every cell in your body. They promote optimal growth, development, function and maintenance of all body tissues. They are also critical for nervous, skeletal and reproductive tissue as well as regulating body temperature, heart rate, body weight and cholesterol.

High Levels of Reverse T3

Unfortunately, for a number or reasons, high levels of Reverse T3 are common and can be major cause of low thyroid symptoms. If your labs show a high level of reverse T3, this means that you are converting most of your T4 into reverse T3 rather than T3. T3 is the most active form of thyroid hormone and it is converted from T4 as needed by the body. Calculating your T3 rT3 ratio is an important metric if you or loved one struggles with thyroid disease. To say that thyroid lab values and markers are often misunderstood and confusing is an understatement.

Here Are Just a Couple Points To Remember That I Didn’t Cover In Today’s Video

  1. TSH goes up when thyroid function is low (TSH stands for Thyroid Stimulating Hormone).
  2. There are many Thyroid markers that should routinely be checked but often they doctors only check TSH, and maybe Free T4. You can learn more about a complete Thyroid Panel
  3. T3 is 4x more potent than T4
  4. If you have your T3, Free T3 and rT3 levels plug your thyroid values into my thyroid calculator. Find out some of the reasons for a low T3/rT3 ratio 
  5.  T3 is the active form of thyroid hormone- low Levels cause hypothyroid symptoms.
  6. There is so much more to the Thyroid than just taking T3. Many abnormal responses within the body can affect your thyroid ie Diet, sex hormones, Thyroid binding Globulin, Infalmmation, Toxicity, Heavy Metals, Gut infections and many others. You can watch a video I did titled 10 steps to supporting your Thyroid Naturally
  7. Keep this in mind when changing doses (for instance, prescription T3 at a dose of 25 micrograms = T4 at a dose of 100 micrograms)
  8. Why T3 and Free T3 need to be tested on Every thyroid patient.
  9. Interested in becoming a patient? Schedule a 15 minute consult 

Learn more About Supporting Your Thyroid Naturally

Category: ThyroidTag: adrenal, Reverse T3, T3, T3 rT3 ratio

Previous Post: «What Are Lipopolysaccharides, And How LPS Toxins Affect Thyroid Health? 2 High Reverse T3 Levels- 5 Causes Behind Your High RT3 Levels
Next Post: Steps To Choosing The Best Thyroid Medication »

Primary Sidebar

Schedule a FREE 15 minute consult

Schedule Now

Not Sure Where to Start?

In order to make the most out of your time with Dr. Hagmeyer, please take a moment to complete our health questionnaire.

Health Questionnaire
  • Facebook
  • Google+
  • LinkedIn
  • Twitter
  • Terms and Conditions
  • Privacy Policy

The entire contents of this website are based upon the opinions of Dr. Richard Hagmeyer unless otherwise noted. Individual articles are based upon the opinions of the respective author, who retains copyright as marked. The information on this website is not intended to replace a one-on-one relationship with a qualified health care professional and is not intended as medical advice. It is intended as a sharing of knowledge and information from the research and experience of Dr. Hagmeyer and his community. Dr. Hagmeyer encourages you to make your own health care decisions based upon your research and in partnership with a qualified healthcare professional. These statements have not been evaluated by the Food and Drug Administration. Dr. Hagmeyer products are not intended to diagnose, treat, cure or prevent any disease. If you are pregnant, nursing, taking medication, or have a medical condition, consult your physician before using any products. Copyright © 2022 Dr. Hagmeyer · All Rights Reserved · Powered by drhagmeyer.com