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.



Dr. Alison McAllister

Alison McAllister, ND is the Clinical Consultant Manager at ZRT Laboratory.
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Recent Posts

Lithium - Medication or Micro-Nutrient?

Posted by Dr. Alison McAllister on Monday, 02 April

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Lithium is an element that, at the present time, is considered non-essential to the human body. However, it is getting a lot of attention as a therapy, and there are interesting reports of beneficial actions of lithium. 

You might have seen our blog by Dr. James Greenblatt or one of the NY Times articles mentioning lithium. It is also coming up with frequency because of increasing awareness on mental health issues. There are lots of questions still to be answered, but we are excited about delving into them with you.

For this blog, I wanted to take a moment to introduce a new test for ZRT that ties in with our nutritional elements testing – lithium in dried urine.

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Menstrual Cycle Mapping – Your Questions Answered

Posted by Dr. Alison McAllister on Friday, 02 February

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ZRT has launched a month-long hormone assessment in dried urine called the Menstrual Cycle Mapping test. This is what some call the 28-day hormone test. In our profile, we test estrogen, progesterone, and LH levels throughout a month. 

This article tackles some frequent questions providers might have regarding the purpose of the testing and who the ideal patient is.

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Hormones, the Menstrual Cycle & Cycle Maps

Posted by Dr. Alison McAllister on Thursday, 14 December

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The menstrual cycle is a symphony of hormones coordinated to yield an egg and to prepare the uterus and breast tissue for pregnancy. For most women, pregnancy will only take place in a very small percentage of cycles.

However, the monthly surge and fall of hormones starting in menarche and ending in menopause influences the brain, breast and uterus of women and may result in numerous symptoms throughout the month.

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Keeping Your Child Safe From Toxic Baby Food

Posted by Dr. Alison McAllister on Friday, 10 November

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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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