Functional Diagnostic Nutrition Practitioner · FDN-P

Kelsey Koehler, FDN-P

Founder of Pro Fit High Performance Medicine. She reads the labs you already have and turns the numbers into a plan.

13+
Years in practice
3,781+
Clients served
7
Countries
20,000+
Biomarkers analyzed
Kelsey Koehler is a Functional Diagnostic Nutrition Practitioner (FDN-P) and the founder of Pro Fit High Performance Medicine in Vestavia Hills, Alabama. For 13+ years she has helped clients across 7 countries read the blood work they already have, mapping 20,000+ biomarkers to root causes rather than flagging what falls outside a standard range.

Background

Kelsey built Pro Fit around a common gap: people are told their labs are “normal” and sent home still feeling off. She works the other direction, starting from the data a client already owns and asking what the numbers mean together, as a system rather than a list of isolated flags.

Her approach is functional and systems-based. Hormones, metabolism, gut, and nutrient status are read as connected, and every result is tied to something a client can act on. The frame is capability, what the body can do next, not a label.

Credentials

  • FDN-P — Functional Diagnostic Nutrition Practitioner
  • MS — Functional Medicine & Clinical Nutrition
  • BS — Dietetics & Exercise Science
  • Certifications — thyroid function, blood chemistry, metabolic disorders, and nutrigenomics
  • 13+ years of functional practice across 7 countries

Areas of focus

Functional lab interpretation, hormone optimization, blood chemistry analysis, clinical nutrition, nutrigenomics, and thyroid function. She publishes functional-medicine explainers in the Pro Fit article library.

Kelsey is a Functional Diagnostic Nutrition Practitioner, not a physician. Pro Fit does not diagnose disease or prescribe medication; decisions about medication remain between you and your prescriber.

Have labs you want read?

Pro Fit interprets blood work you already have — from $350.

Explore functional lab testing