Reverse T3 Test



Do you suspect a thyroid problem but testing shows “normal”.  It may be a reverse T3 problem and this simple test can tell you the truth about what is really going on with your thyroid.


What is Reverse T3?

Reverse T3 (RT3) levels can increase when peripheral conversion of T4 to active T3 is impaired.  Peripheral thyroid imbalances may arise from nutrient deficiencies, heavy metal exposure, adrenal stress, enzyme deficiencies, and chronic illnesses.

Reverse T3 acts as a storage protein for three molecules of iodine within tissues and the circulation.  T3 and RT3 are de-iodinated to T2, releasing one of its iodine molecules. These iodine molecules are then utilised by a variety of tissues including breast, prostate, ovaries, salivary glands, CNS, stomach, kidneys and placenta.

Symptoms and Conditions Associated with reverse T3 Thyroid dysfunction



  • Fatigue
  • Poor concentration
  • Weight gain
  • Cold intolerance
  • Skin and hair drness
  • Hair loss
  • Constipation
  • Depression
  • Apathy
  • memory impairment
  • Muscle cramps
  • Myalgia
  • Oedema
  • Bradycardia
  • Dyslipidemia
  • Irregular/heavy menstrual peroids
  • Depressed ovarian function
  • Infertility


  • Fatigue
  • Poor concentration
  • Weight loss
  • Increased sweating
  • Frequent bowel movement
  • Anxiety & restlessnesses
  • Irritability
  • Insomnia
  • Muscle weakness
  • Dyspnea
  • Palpitations
  • Hypertention
  • Irregular menstrual periods
  • Depressed ovarian function

How To Take The Reverse T3 test

The T3 test can be done right near your home or office, simply purchase the test from this page and a test kit will be sent to you, the test includes:

  • An authorized blood specimen order form that you take to your local accredited pathology for collection of your blood (Find a pathology near you here).
  • A blood specimen test kit for the pathology to use to collect your blood sample
  • Complete instructions for taking the test for you and the pathology

Test results are sent to one of our professional health practitioners within 3 – 5 business days for evaluation.  Our practitioners contact you with the results and recommendations on any findings via email, mail or phone.

Have any questions about this test?  Ask one of our qualified health practitioners here.