Metabolic & Nutrient Testing
Zinc & B6 Depletion Test
Also known as: Kryptopyrrole (Pyrrole) Test
A urine marker linked to zinc and vitamin B6 loss — and the stress, anxiety, and mood patterns that follow.
Kryptopyrroles (pyrroles) are compounds that bind zinc and vitamin B6 and carry them out of the body. When levels are high, you can lose these nutrients faster than diet replaces them — and zinc and B6 are essential for stress tolerance, mood, digestion, skin, and hormones. A key test in a mineral-focused practice.
What it measures
Pyrrole Level
- KryptopyrroleElevated levels are associated with increased zinc and B6 loss.
Who this is for
Worth considering when anxiety, stress sensitivity, or stubborn low zinc show up together.
- Anxiety or inner tension
- Poor stress tolerance
- Mood swings or irritability
- Low morning appetite or nausea
- Poor dream recall
- Stretch marks or white spots on nails
- Sensitivity to light and sound
- Low zinc that doesn't respond to supplements
Two ways to get the Zinc & B6 Depletion Test
Lab Only
Available to program members — ordered and reviewed by Tiffeny.
Personalized with Tiffeny
RecommendedWant your results personally reviewed?
- One-on-one interpretation of your results
- Written Root Cause Report
- Personalized 12-week protocol
✦ Members receive exclusive pricing on multi-lab orders. See member perks →
Labs are processed by a CLIA-certified laboratory partner. To protect your privacy, I can only see your results if you add Tiffeny Parker as your practitioner.
What results can reveal
- Elevated pyrroles
- Likely zinc and B6 loss
- A possible driver of stress and mood symptoms
How we interpret it
We read every panel through a functional lens — optimal reference ranges, ratios, and cross-panel patterns. Results become part of your written Root Cause Report and your personalized 12-week protocol.
If pyrroles are high, zinc and B6 become a priority — and we read your HTMA zinc and copper levels with that in mind.
Often paired with
Minerals & Metals Test
Cellular mineral status and heavy metal burden — the foundation of the Method.
Protein & Amino Acid Test
The building blocks of muscle, neurotransmitters, detox, and repair.
Mood & Mind Neurotransmitter Test
The calming and energizing brain chemicals behind mood, focus, motivation, and sleep.
Common questions
Not sure which panels you need?
Start with the Root-Cause Fit Assessment. Takes about 3–5 minutes. If it looks like we're a good fit, you'll be invited to schedule a 45-minute consultation to discuss your health history, goals, and whether this program is the right next step for you.
Educational information only. Functional lab testing is not intended to diagnose, treat, cure, or prevent any disease. Results are reviewed in the context of your full health history.