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.

Does Following a Gluten-Free, Vegetarian or Vegan Diet Result in Increased Heavy Metal Intake?

Posted by Ted Zava on Friday, 17 March

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A recent study from researchers at the Mayo Clinic in conjunction with the Centers for Disease Control and Prevention (CDC) revealed that people following a gluten-free diet have significantly higher arsenic, cadmium, lead, and mercury levels in urine and blood than those not following a gluten-free diet. [1] Another similar study in 2006 revealed that vegans and vegetarians have an increased cadmium body burden in comparison to those following normal diets. [2] So why do gluten-free, vegetarian, and vegan diets increase the risk of heavy metal exposure? Increased consumption of two foods that are staples for all cultures around the world are the primary culprits: rice and green leafy vegetables.

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Looking Back: Popular 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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Lax Demolition Laws Lead to Toxic Neighborhoods. Goodbye Old House, Hello Lead Dust!

Posted by Ted Zava on Wednesday, 09 November

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Over the past year there has been a plethora of news stories about lead exposure. From Flint, Michigan to Portland, Oregon, details have emerged about schools, homes, water supplies, and other areas and structures contaminated by lead. It hardly surprises me when these pop up in the news, as lead has been used generously in piping, paint, gasoline, ammunition, and batteries, among many other products during the last century.

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Testing "Low" For Lead - Why Your Child's Results May Be Misleading

Posted by Ted Zava on Wednesday, 22 June

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The lead exposure stories that have dominated U.S. news recently now have parents scrambling to determine if their children have been exposed.

Parents are right to be worried because lead affects children differently than adults, primarily due to its detrimental effects on a developing brain and nervous system. I covered 10 need-to-know facts about childhood lead poisoning in an earlier blog.

In most cases if lead is detected in a school or community, free lead screening events for young children (1-5 years old) are made available. Parents should definitely take advantage of these programs, but they should look closely at the results they're getting.

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