Our Story

The Team Behind Your Transformation

Founded in 2011, Pro-Fit Health Performance Medicine combines functional medicine, precision diagnostics, and performance optimization to help clients reclaim their health from the inside out.

13+
Years Experience
3,247+
Clients Served
7
Countries
20K+
Biomarkers Analyzed

Root Cause Medicine, Not Band-Aid Solutions

We believe that optimal health isn’t about managing symptoms — it’s about finding and fixing the root cause. Through advanced lab testing, functional medicine protocols, and personalized nutrition strategies, we help our clients achieve results that last.

Root Cause Focused

We dig deeper than symptoms to find and address the true source of dysfunction.

Data-Driven Decisions

Every protocol is backed by 20,000+ biomarkers of clinical data and precision diagnostics.

Whole-Person Care

We treat you as a complete person — mind, body, and performance — not just a set of labs.

Meet the Experts

Board-certified providers, functional medicine specialists, and performance coaches

Dr. William F. Smith

Dr. William F. Smith

Medical Director & Clinical Advisor

Board-certified dermatologist with 25 years of experience. President & CEO of the Louisville Dermatology Institute, known for compassion, integrity, and extraordinary patient care.

Dr. Luke Mueller

Dr. Luke Mueller

Internal & Concierge Medicine

Graduated with honors from Auburn University. Board Certified in Internal Medicine with a career focus on preventative health and incorporating all aspects of lifestyle into patient wellbeing.

Katrina Feola

Katrina Feola

RN & Certified Functional Nutritionist

22 years as a Registered Nurse with a BSN. Certified Functional Nutritional Therapy Practitioner since 2018, specializing in lab analysis, thyroid disorders, and GI health.

Kazzie Brown

Kazzie Brown

Functional Nutritionist

Holds dual Master’s degrees in Functional Nutrition and Health Promotion. Specializes in sustainable weight loss, metabolic health, and habit-based coaching for lasting results.

Shelbi Robinson Allen

Shelbi Robinson Allen

Executive Director

Your go-to for scheduling, medication refills, supplement orders, and lab coordination. Shelbi keeps everything running smoothly so you can focus on your health journey.

John

John

Performance & Leadership Coach

Former US Navy SEAL with 10+ years of elite service. Coaches pro-athletes, world champions, and business leaders to unlock peak performance, purpose, and clarity.

Built From Personal Experience

Pro-Fit was born from a deeply personal journey. Twelve years ago, I was struggling with PTSD, gut issues, autoimmune thyroid disease, and metabolic dysfunction. As a single mom starting over with nothing, I knew there had to be a better way to heal—so I set out to create the comprehensive, science-driven approach I desperately needed.

That journey of self-healing led me to earn my Master’s in Functional Medicine and Clinical Nutrition, and it laid the foundation for what Pro-Fit is today: a company dedicated to helping others reclaim their health and performance through lab testing, personalized protocols, and root-cause medicine.

Every program, supplement, and lab test we recommend is backed by research and clinical data. For complex cases, we collaborate with our Board of Directors, mentors, and medical practitioners to ensure you receive the best possible care. And if we aren’t the right fit, we’ll always be upfront and connect you with someone who can.

— Kelsey Koehler, Founder

Ready to Meet Your Team?

Schedule a free consultation and discover what root-cause medicine can do for you.

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