Precision Analytical Inc.

Precision Analytical Inc. Precision Analytical, Inc. Creator of The DUTCH Test, industry-leading hormone testing & education.

Our mission is to empower providers to address complex hormonal issues, enhance patient outcomes, and improve lives. Founded in 2012 by Mark Newman, MS, the DUTCH Test was created to revolutionize hormonal health care and elevate patient outcomes. Recognizing the critical need for a more effective approach to wellness—and the severe limitations of traditional urine and salivary tests—Mark set out to build the most comprehensive tool for identifying hormonal imbalances and dysfunctions. The DUTCH Test combines the convenience of at-home urine collection with powerful, peer-reviewed insights, giving global providers the advanced tools needed to tackle complex patient challenges. Precision Analytical, the creator of the DUTCH Test, operates as a CLIA-certified laboratory committed to solving complex clinical questions. Our advanced hormone testing methods empower providers to investigate and manage hormonal conditions more effectively, reflecting our mission to transform lives through innovative hormone testing.

It’s that time again and the office doors are open! This week, Dr. Kelly Ruef, ND and Dr. Allison Smith, ND are diving i...
04/04/2026

It’s that time again and the office doors are open! This week, Dr. Kelly Ruef, ND and Dr. Allison Smith, ND are diving into the case studies explored at DUTCH Fest. They’re unpacking topics like testing (and retesting), how and when to use DIM, and the nuances of estrogen methylation.

The questions being answers:
1️⃣ Can someone who has had a full hysterectomy do a DUTCH Test?
2️⃣ How does a person retest if they are on hormones like progesterone?
3️⃣ How do you push toward the 2-hydroxy estrogen pathway?
4️⃣ Would you avoid using DIM with a patient who has high estrogen, alongside poor methylation?
5️⃣ When using DIM to favor protective pathways, what would you consider if you don’t want to lower estrogen?
6️⃣ Would you recommend DIM to someone who has had a Cholecystectomy?
7️⃣ Would you use Vitex in combo with oral progesterone?
8️⃣ How does this pattern [in case 1] help explain heavy periods?

Scroll through to listen and learn from each answer! Have questions of your own? Drop them below in the comments! 👇

04/01/2026

Heart rate variability 🤝 Cortisol Awakening Response

Allison Smith, ND joins on The DUTCH Podcast to unpack how hormonal shifts, stress, and inflammation are deeply intertwined.

Dr. Smeaton and Dr. Smith also discuss:
- The relationship between hormonal changes, stress, and inflammation
- The role cortisol and estrogen play in sleep quality
- DUTCH test patterns that may point to inflammation, immune activation, or hormone resistance

Comment DUTCH to get the link to listen today! 🎧

03/31/2026

What’s the connection between the HPA-axis and the immune system? 🤔

In today’s episode of The DUTCH Podcast, Dr. Allison Smith, ND joins to share expert insights into how hormones, the HPA axis, and lifestyle factors influence immune health, injury risk, sleep, and overall well-being during perimenopause and menopause.

Listen to learn more about:
- How markers like quinolinate and melatonin can offer deeper insight into immune function
- Why shifting hormones can trigger symptoms like joint pain, itchy ears, and autoimmune flare-ups
- The evolving role of the gut microbiome in hormone balance and immune regulation through pregnancy and menopause

Listen here: https://dutchtest.com/podcasts/inflammation-immunity-on-the-dutch-test

@‌environmentalworkinggroup’s 2026 Clean Fifteen & Dirty Dozen are here!If you’re looking to reduce pesticide exposure, ...
03/31/2026

@‌environmentalworkinggroup’s 2026 Clean Fifteen & Dirty Dozen are here!

If you’re looking to reduce pesticide exposure, this is your guide to shopping smarter, not stricter. Fruits and veggies are essential for good health, but some tend to carry more pesticide residue than others.

Why this matters 👇
Pesticide residues on produce, along with chemicals from plastic packaging and even contaminants in groundwater, can disrupt how our hormones function. These exposures may shift how the body metabolizes estrogen, favoring more estrogenic and potentially harmful byproducts.

Over time, this toxic burden has been linked to:
- Fertility challenges
- Hormone imbalance
- Increased risk of estrogen-sensitive cancers (like breast & prostate)

Chemicals like BPA (found in some plastics) can interfere with ovulation by disrupting the LH surge.

Small changes add up. Use these lists as a tool to prioritize where organic choices may matter most, while still enjoying a diverse, plant-rich diet 🌿

03/28/2026

DUTCH Fest was full of amazing takeaways and “aha moments.” Office Hours this month is about focusing on these and more with Dr. Allison Smith, ND and Dr. Kelly Ruef, ND. We got the question:

👉 What are some things we can do to support hypothalamic-pituitary-ovarian (HPO) axis?

Listen as Dr. Kelly breaks down this question and stay tuned for more next week!

03/25/2026

Hair isn’t just hair, it’s deeply personal.

Join us as breaks down menopausal hair loss and the innovative therapies that can aid in hair restoration. He and discuss female pattern hair loss, the different emotional and hormonal factors that affect hair health, and personalized treatment plans to help address hair loss in women.

Listen here: https://dutchtest.com/podcasts/menopausal-hair-loss

03/24/2026

Menopausal hair loss can sneak up on you. Don’t wait to seek treatment if you start seeing the signs.

On this week’s episode of The DUTCH Podcast, we have hair loss expert, . He and discuss the complexities of hair restoration, particularly focusing on menopausal hair loss in women.

They also explores:
- The importance of nutrition and stress management in hair health
- How personalized treatment plans can help effectively address hair loss in women

Listen here: https://dutchtest.com/podcasts/menopausal-hair-loss

03/19/2026

This week’s episode of The DUTCH Podcast dives deep into women’s health and how sleep, exercise, and nutrition are essential for hormone balance. joined to share her journey from working with professional athletes to focusing on everyday women. They discuss the evolution of women’s fitness goals, the importance of understanding energy needs, and the impact of stress and inflammation on overall well-being.

This episode also highlights:
- The role of recovery, nutrition, and self-care
- The pressures modern women face and how a supportive environment can help
- How hormone health plays a role in fitness and in understanding the root cause of health concerns

Listen here: https://dutchtest.com/podcasts/holistic-health-fitness-for-women

03/18/2026

Thank you to all who joined us at DUTCH Fest 2026.

For three days, DUTCH Providers came together for advanced hormone education, real clinical case work, and meaningful connection with peers who are committed to improving patient care.

From deep dives into DUTCH Test interpretation to collaborative case discussions, the energy and engagement from this community was incredible.

Thank you to everyone who joined us and helped make this year’s event so special.

We’re already looking forward to the next one.

03/17/2026

How you do one thing is how you do everything.

In this week’s episode of The DUTCH Podcast, sits down with to dive into the real complexities of women’s health, especially when it comes to exercise, nutrition, and hormone balance.

They also discuss:
✨ The pressures women navigate today and why community and support matter
✨ How hormones influence fitness and recovery
✨ Getting to the root cause of health concerns instead of just managing symptoms

Listen here: https://dutchtest.com/podcasts/holistic-health-fitness-for-women

03/13/2026

Two days down at DUTCH Fest 2026.

Today’s sessions continued to build on advanced hormone education with deeper case work, clinical insights, and hands-on learning designed specifically for DUTCH Providers.

The energy in the room has been incredible.

One more day of learning, collaboration, and community before we close out this year’s event.

DUTCH Fest 2026 starts today!For the next three days, registered DUTCH Providers are coming together for focused, case-b...
03/12/2026

DUTCH Fest 2026 starts today!

For the next three days, registered DUTCH Providers are coming together for focused, case-based hormone education designed for real clinical practice.

Attendees will:
🔬 Strengthen their DUTCH Test interpretation skills
🎤 Learn directly from Mark Newman, MS, Dr. Jaclyn Smeaton, ND, and Dr. Carrie Jones, ND
🧠 Work through real clinical cases
🤝 Connect with a community of practitioners committed to clinical excellence

If you’re joining us, we’re excited to see you.

Follow along this week as we share highlights from DUTCH Fest 2026.

Address

3138 NE Rivergate Street
McMinnville, OR
97128

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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