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.

Is Sweating a Good Bet for Heavy Metal Detox?

Posted by Ted Zava on Thursday, 08 March

Woman in tank top sweating detox

A couple years back, I wrote a blog about iodine deficiency in athletes resulting from excessive sweat loss.

Later, while studying the kinetics of the iodine loading test which involves taking a 50-mg dose of iodine and collecting urine for 24 hours, I investigated the excretion of iodine in sweat along with urine.

Surprisingly iodine levels in sweat tracked urine iodine excretion over a period of 3 days. The goal was to show that the loss of iodine through sweat can represent a significant portion of the 50-mg dose, something the creators of the Iodine Loading Test had not accounted for.

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Protecting Children from Lead Dust Exposure. Time for Change.

Posted by Ted Zava on Friday, 19 January

Young boy holds his father's hand

Lead is an incredibly dangerous heavy metal with no known beneficial use in the body. It mimics calcium, affecting all calcium-dependent biological processes, and is known to disturb the cardiovascular, renal, endocrine, and nervous systems. In children, the brain is the most sensitive target, as the blood brain barrier is less effective in children than in adults, potentially causing developmental delays even at low levels of exposure [1].

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Keeping Your Child Safe From Toxic Baby Food

Posted by Dr. Alison McAllister on Friday, 10 November

Baby eating baby food

Is there anything more endearing than the photographs of your baby eating his or her first foods? Their faces squish-up, they are covered from head to toe, their tongues protrude to catch every bite or more often to try to get the revolting taste out of their mouths.

Now, we parents are the ones squishing up our faces and showing huge grimaces of disgust at the latest report that our baby food is contaminated by metals – arsenic, lead, cadmium – none of it monitored or regulated by the FDA.

The non-profit Clean Label Project independently analyzed 500 baby formulas and prepared baby foods (formula, food, pouches, snacks, drinks, cereals) from 60 companies and found the following horrifying information. 

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Toxic Baby Food: A Look Beyond the Labels

Posted by Ted Zava on Friday, 27 October

Baby resisting baby food

A recent news story [1] reports that the Clean Label Project, a non-profit organization focused on health and transparency in consumer product labeling, tested 530 baby food products for toxic elements and chemicals. The results were not good.

Sixty-five percent of products tested "positive" for arsenic, 36% for lead, 58% for cadmium, and the tests even showed high levels of BPA in “BPA Free” products. These toxins are harmful to infants (and adults), and can lead to developmental delays and permanent damage to the brain, kidneys, liver, bladder, and many other organs in the body. Arsenic and cadmium are known carcinogens while lead, a damaging neurotoxin, accumulates in bone and is released back into the bloodstream when bones develop (a continuous source of exposure) [2].

All toxin exposure should be limited, especially during infancy and childhood when the brain and other organ development is at its most sensitive.

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