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Neurotransmitters are chemical messengers that transmit signals between nerve cells in the nervous system. A balanced level of these neurotransmitters is essential for overall health. When imbalanced, they can cause neurological or psychological issues, such as anxiety, depression, chronic fatigue, or insomnia.

ZRT offers a unique approach to neurotransmitter testing, analyzing 14 key neurotransmitters and metabolites to provide a comprehensive view of your neurochemistry. Unlike other labs, ZRT combines parent neurotransmitter levels with their downstream metabolites, ensuring accurate results and more effective treatment plans. This comprehensive testing, available exclusively through ZRT, helps identify systemic patterns that may be contributing to your health issues.

Neurotransmitter imbalances are often linked to common conditions like anxiety, depression, ADHD, and PMS. ZRT’s testing also examines the influence of hormones, heavy metals, and nutritional elements, offering a more complete and precise understanding of your health.

For the most accurate and convenient testing, ZRT's dried urine method allows for discreet, at-home collection—no need for all-day urine collection. The dried strips are easy to mail back, providing a hassle-free way to assess your neurotransmitter levels.

To explore all neurotransmitter tests, click the link below.

In their conversation, McAvoy and Dr. Zava discuss his early research, the development of non-invasive hormone testing through saliva, and how this has revolutionized how clinicians understand hormone health. Dr. Zava also touches on his significant findings regarding the metabolism of estrogen and how lifestyle factors can influence cancer risk. He reflects on the challenges he faced in the early days of ZRT Laboratory, including financial struggles, but also shares the satisfaction of making a real difference in the lives of patients and healthcare providers.

For McAvoy, Dr. Zava’s work has been instrumental in shaping his own approach to patient care. ZRT's comprehensive hormone testing, including their Hormone Profile III, has helped countless practitioners like McAvoy identify hormonal imbalances and tailor treatments that improve patient well-being.

To learn more about Dr. Zava’s remarkable journey and the transformative work being done at ZRT Laboratory, read the full interview below.

  By Dr. Alison McAllister, ND Becoming a parent is a dream that can sometimes feel out of reach, especially for those facing infertility. For many, the path to parenthood is fraught with challenges. Infertility affects one in six individuals, with a significant portion stemming from female factors. Polycystic Ovary Syndrome (PCOS) is one such factor, impacting around 10% of women and making conception a struggle for approximately 80% of them. Recent advancements have deepened our understanding of PCOS, revealing it as more than just an ovarian issue. Here are some key insights: Complex Hormonal Imbalances: PCOS involves elevated androgens...

Understanding the intricate balance of hormones is crucial in the journey towards optimal health, especially for men. ZRT Laboratories introduces two comprehensive Dried Blood Spot (DBS) profiles, Male Blood Profiles I & II, designed to provide valuable insights into sex hormones, adrenal function, and thyroid health. In this blog, we'll delve into the components of each profile, their significance, and the considerations they address for men seeking a thorough hormonal assessment. Deciphering Male Blood Profile I:  Tailored for men, Male Blood Profile I stands as a robust tool for assessing sex and adrenal hormone levels, with an added PSA test...

In the realm of women's health, understanding the delicate balance of hormones is key to overall well-being. ZRT Laboratories introduces two comprehensive dried blood spot (DBS) profiles, Female Blood Profiles I & II, offering an alternative to saliva testing. In this blog, we'll delve into the significance of each profile, its components, and the myriad considerations they address for women seeking a thorough hormonal assessment. Decoding Female Blood Profile I: Designed for women who face challenges in producing sufficient saliva for testing or using sublingual hormones, Female Blood Profile I stands as a robust alternative to Saliva Profile I. This...