Vitamin D, the complete methylation story (B12, MMA, folate RBC, homocysteine), intracellular minerals (magnesium RBC, zinc RBC), and full iron panel with TIBC and ferritin. The foundational deficiencies that drive most fatigue, brain fog, and energy complaints , read at the cellular level rather than serum proxies.
What’s tested
biomarkers
Grouped by clinical axis. Notes flag the markers where the assay choice or interpretation matters most.
Why these matter
Methylmalonic Acid
Functional B12 marker. Can flag B12 insufficiency when serum B12 still looks normal.
Folate, RBC
Long-term folate status (3 to 4 month window). Serum folate only reflects recent intake.
Homocysteine
Methylation outcome marker , elevated when B12, folate, or B6 status is impaired.
Why these matter
Magnesium, RBC
Intracellular magnesium , what’s actually in your cells, not the labile serum proxy.
Zinc, RBC
Intracellular zinc , serum zinc varies with recent meals and isn’t reliable.
Why these matter
Iron, TIBC and Ferritin Panel
Complete iron read. Ferritin (iron stores) is the headline marker most basic panels miss.
Typical journey timeline
The end-to-end from ordering the panel to following the Plan.
Day 0
Lab booking & intake
Complete a short intake form and pick a Quest location nearby.
Day 1 to 5
Lab test
Visit a local Quest draw site. The draw itself takes ten minutes.
Day 7 to 10
Results ready
I review your results against functional optimal ranges, not just disease cutoffs.
Week 2
Precision Health Plan delivered
A written interpretation and a personalized plan across nutrition, movement, sleep, and supplements.
Month 3 to 6
Personalized follow-up
A short check-in on your progress against the goals identified in the Plan.
Questions
Reach Dr. Tagge directly. Text the quick question, email the longer one, or ask me to call you.
The other way
The panel
A snapshot. Yours to keep. Includes the lab work and a physician’s interpretation. The right move when one read is the question.
The relationship
The panel is the snapshot; ongoing care is the relationship. A membership keeps a doctor who knows you in your phone and puts your metabolism on a testing rhythm, measured and corrected at what I pay. The right move when one read isn’t the question.
How membership worksOr read about how longevity is built in.
Related panels
A comprehensive micronutrient read. B-complex methylation, fat-soluble vitamins, intracellular minerals, and iron. Includes a physician’s interpretation.
Includes a physician’s interpretation. Drawn at a local Quest. Itemized receipt provided.