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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3 Keys to Preventing Prostate Cancer

Posted by Dr. Allison Smith on Friday, 24 June

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Getting an early jump on a disease process like cancer makes treatment exponentially easier and outcomes generally better.

Under the current guidelines, that early jump on prostate cancer starts at age 55 for men at low to moderate risk and 40-45 for men at high risk. It takes years for cancer to grow to a detectable point after the tumor's initial induction from a normal cell to a cancerous one.

There's been a lot of research done to determine what those inducers are and how they work. Three of these inducers are simple to test for and completely modifiable with treatment and/or avoidance:

  • Bisphenol A
  • Arsenic
  • Catechol estrogens

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Arsenic Exposure from Rice and Rice-Based Breakfast Cereals

Posted by Ted Zava on Wednesday, 19 November

Arsenic exposure from rice cereal

Did you know that the amount of arsenic in your public water supply is strictly regulated by the FDA, and must test below 10 ppb* total arsenic? Ironically, the food we eat has no such regulations on arsenic content, and some staple foods such as rice may contain high levels of arsenic.

Arsenic is a natural element found in soil and water at different concentrations throughout the world. There are two types of arsenic, inorganic and organic, the former being much more toxic and associated with generation of free radicals that damage tissues and potentially lead to diseases of aging and cancer. Typically, chronic long term arsenic exposure comes from private or unregulated wells, but recently rice grown in soil and irrigation water containing high levels of arsenic has been identified as a major source of arsenic exposure.

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