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 Metals 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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Endocrine Disruptors: What They Are & How To Avoid Them

Posted by Margaret Groves on Friday, 17 February

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As a hormone testing lab, ZRT understands the importance of a well-balanced endocrine system in maintaining overall health.

Hormone balance is achieved through multiple feedback mechanisms, and when any part of the system is thrown out of whack by forces beyond its control, there is a knock-on effect on the rest of the body systems that are under endocrine control.

Such forces can include extreme or chronic stress, or exposure to environmental toxins that enter the body through the air we breathe or in our diets. Substances in the environment that upset the endocrine system are known as endocrine-disrupting chemicals, or EDCs.

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Are Heavy Metals in Lipstick Making Us Sick?

Posted by Candace Burch on Friday, 20 May

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Practical Takeaway:

Studies have found toxic heavy metals, including lead, cadmium, arsenic, aluminum, mercury and other toxins deemed hazardous by the CDC in a random sampling of lip products used by women of all ages. 

For millions of women the world over, this casts a pall on the transformative promise of cosmetics to make us look and feel more beautiful. 

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Elements Testing – Why Sample Type Matters!

Posted by Ted Zava on Tuesday, 03 May

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Urine, serum, plasma, whole blood, red blood cells, feces, hair, fingernails…the list goes on.

How do you decide what biological sample(s) to use for element analysis? Can results be compared to scientific literature or do they have clinical significance? Is it possible for values to be elevated or low in one sample type and normal in another? Do test results indicate recent intake, body burden, acute toxicity, chronic toxicity, deficiency, or homeostatic regulation?

These are just some of the questions facing a testing laboratory when they want to develop and validate essential and toxic element profiles that will provide clinically meaningful results.

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