Specialty test – Reverse T3

Original price was: $129.00.

Reverse T3 (RT3) is really important. The body tries to stay in balance at all times and it has the ability to convert T4 into “active” free T3 or if it thinks it may have enough “active” free T3 it can switch and convert T4 into Reverse T3. Reverse T3 is a competitor with free T3. It binds to the same cell receptor site as free T3 but since it is not active, it doesn’t do anything but prevent free T3 from working.


SKU: 01-ht0160 Categories: ,


There are multiple conditions that fool the body into making more Reverse T3 than it should. Some of these conditions are very common including stress, illness, and even pain.

►Studies show that with any sickness, inflammation or physiological stress, there is a decrease in TSH, T4, T3 and an increase in Reverse T3. Reverse T3 is inactive and actually competitive as it blocks the T3 receptor.

►The more severe the illness or stress, the more severe the suppression.

►This is shown to occur with response to physiologic and emotional stress; depression; dieting; weight gain and leptin resistance; insulin resistance, obesity and diabetes; inflammation from autoimmune disease or systemic illness; chronic fatigue syndrome and fibromyalgia; chronic pain; and exposure to toxins, pesticides and plastics.