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

5 Tips to Getting Started with ZRT Testing

Posted by Dr. Alison McAllister on Friday, 06 July

ZRT kits displayed

Health care providers (HCPs) who want to get started with ZRT Laboratory need only take a few easy steps to begin using our saliva, dried blood spot and dried urine tests. Simply set up an account, order kits and then identify the patients who can benefit from hormone, neurotransmitter, heavy metal, and cardiometabolic testing. Best of all, when HCPs have questions about reports and treatment plans, they can simply call our team of clinicians for answers.  

Want more details on using ZRT? Read on to learn Dr. Alison McAllister’s 5 tips for successfully integrating ZRT testing into your practice.

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Lithium - Medication or Micro-Nutrient?

Posted by Dr. Alison McAllister on Monday, 02 April

Person holding Fertility test kit and Menstrual Cycle Mapping test kit

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

Clinician pointing to menstrual cycle mapping graphs

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

Woman looking upwards with hand on her forehead

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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