The ZRT Laboratory Blog

The ZRT Blog is an extensive resource for patients and health care providers searching for health and hormone testing information. Here, you can read about ZRT’s cutting edge research, advances in testing, wellness advice, and health industry highlights.

Looking Back: Patient Blog Posts of 2016

Posted by ZRT Laboratory on Monday, 09 January

ThinkstockPhotos-78051201_lores.jpg2017 has arrived, and with it comes new opportunity to understand the role of hormone balance in our overall health. 

Before getting started, we wanted to take a brief moment to reflect on the top stories of 2016 that captured your attention on the ZRT Blog. Following is a round-up of 2016's most popular posts for patients.


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Determining the Functional Causes of Hypothyroid Symptoms

Posted by Jim Paoletti on Tuesday, 08 December

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Hypothyroidism is defined as “lack of thyroid hormone production from the thyroid gland.” 

However, many patients who produce sufficient hormone from the gland still suffer from low thyroid symptoms. 

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Understanding Selenium Supplementation

Posted by Margaret Groves on Tuesday, 30 June

Selenium - Element Table

A balance of nutrients is required by our bodies to maintain good health, and selenium (Se) is an important one that often gets overlooked.

This essential element is a required component of the selenoproteins, which include those that are needed to convert thyroid hormone from the inactive to the active form, and several important anti-oxidants.

While optimal selenium levels are imperative for proper thyroid function, abnormally high selenium intake can be toxiccausing gastrointestinal disturbances, changes in nails and hair, weakness, convulsions and decreased cognitive function. So it’s important to understand the ways in which we take in selenium, both in the diet and as supplements.

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Clearing up the Confusion about Reverse T3: Part 2. The Role of Reverse T3 in Thyroid Assessment

Posted by Margaret Groves on Friday, 08 May

ThinkstockPhotos-467771145Part 2

As more health care practitioners have understood the need to assess thyroid function based on what is going on at the cellular level, there has been an increasing demand for testing of reverse T3 (rT3), a hormone sometimes referred to as the “hibernation hormone.” However, there is also much confusion about how it fits into the picture of thyroid function, and controversy regarding whether or not there is a clinical utility for this test in patients suffering from thyroid imbalance symptoms.

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