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.

Guide: How to Assess Iodine Deficiency

Posted by Dr. Allison Smith on Friday, 28 September

ThinkstockPhotos-911966802I’m excited to do this practical piece on iodine therapy because I field a lot of questions on the matter of assessing iodine status, implementing the right iodine supplement, and monitoring that therapy.

Iodine performs some crucial roles in the body, but it never acts alone. Therefore, to assess iodine deficiency, it’s imperative to test iodine and its partners - selenium, iron, magnesium, zinc, B6, cortisol, and glutathione. To assure optimal outcomes, it’s also important to check for endocrine disruptors like bromine, cadmium, mercury, and arsenic.

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Thyroid Balance – Your Key To Brain & Body Harmony

Posted by Amen Clinics on Friday, 13 April

Distressed woman drinking coffee

Your thyroid is a small, butterfly-shaped gland located in the lower front part of your neck. Its job is to secrete hormones that control growth/development during childhood, regulate your metabolism and body temperature, and drive the production of many neurotransmitters in your brain. Specifically, the ones that help you feel good and enough have motivation to accomplish your goals: serotonin, dopamine, adrenaline, and noradrenaline.

It’s estimated that tens of millions of people worldwide have thyroid problems—anywhere from 5-25% of the world’s population. In the book, Thyroid Mind Power, it’s reported that, “the last 40 years have witnessed a massive increase in the amount of hormone-disrupting synthetic chemicals, finding their way into our air, food and water…The most sensitive and highly susceptible of human tissues turned out to be the thyroid gland.”

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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

Person collecting for ZRT blood spot testing

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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