Goodbye Pie Chart, Hello Phase 1 Sliders

Written by Allison Smith, ND | 2025 As we usher in a new era of DUTCH testing which leaves behind the concept of the three-way ratio that compared 2-OH-E1, 4-OH-E1, and 16-OH-E1 in favor of the two-way ratios that directly compare 4-OH-E1 to 2-OH-E1 and 16-OH-E1 to 2-OH-E1, it’s important to align on why we […]

Introducing the DUTCH Dozen

Written by Kelly Ruef, ND | 2025 Hormone testing can be complex, which is why Precision Analytical developed the DUTCH Dozen, an interpretive framework that streamlines interpretation of the DUTCH Test, providing healthcare providers with a clear and actionable starting point for creating treatment plans. The DUTCH Complete and DUTCH Plus tests now report your […]

DUTCH Report Enhancements

Written by Hilary Miller, ND | 2025 Precision Analytical have released the newest version of the DUTCH Test. This is the report’s most significant update since the debut of the DUTCH Test in 2013. The newest DUTCH report highlights the key components of the patient’s hormonal health that the DUTCH Test has been reporting for […]

When to run an Organic Acids Test (OAT): An Essential Metabolic Profile

Since the creation of the Organic Acid Test, by William Shaw, PhD, many people have found answers to lingering health questions that could not otherwise be explained. To many seasoned and new practitioners, the wonders of the OAT have been known, but oftentimes practitioners still pose the question… When should I run an OAT? This […]

Food Sensitivities and Inflammation with Dr Joel

In this 40 minute podcast, Dr Robert Silverman talks to Dr Joel Evans about the Food Inflammation Test (FIT), giving a clear explanation of its application in practice and why it is a useful tool in the treatment of gut and gut-associated conditions. Login for practitioner-only content: Dr Joel M. Evans, M.D., a board-certified OB/GYN […]