Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — functional medicine testing

Cortisol testing helps evaluate how the body responds to stress by measuring daily hormone patterns linked to energy, sleep, mood, and immune balance. Through saliva and blood spot methods, clinicians can identify adrenal and HPA-axis imbalances early, enabling more personalized strategies to address fatigue, burnout, and stress-related health concerns.

The MediCARE Specialized Blood Spot Test uses advanced dried blood spot technology to deliver accurate, Medicare-eligible insights into hormone balance, cardiometabolic risk, heavy metal exposure, and Vitamin D status—using a simple, at-home finger-prick sample with laboratory-grade reliability.

Learn the key differences between EIA, ECLIA, and mass spectrometry hormone testing methods, and discover why ZRT Laboratory’s long-standing use of LC-MS, GC-MS, and ICP-MS delivers gold-standard accuracy for advanced hormone analysis.

Learn the science of saliva testing, how it measures bioavailable hormones, and why it’s trusted by patients, clinicians, and wellness experts.

A fasting insulin test helps identify early signs of insulin resistance, often before blood sugar levels become abnormal. By measuring insulin after an overnight fast, it provides valuable insight into metabolic health, energy balance, and long-term risks such as diabetes and heart disease. Easy at-home testing with a simple finger-prick sample allows you to understand your insulin levels clearly and take proactive steps to protect your health.