Book a ConsultationCoach Sean Riley & Heather Riley × Functional Medical Institute
Peptides and Wellness, Done the Right Way.
Physician-directed peptides, comprehensive blood work and a plan built on your results, from the medical team at Functional Medical Institute. No guessing, no mystery vials, no website roulette.
A physician-guided 90-day reset from Drs. Mark & Michele Sherwood: detox, repair and longevity.

“Designed by God. Stewarded with purpose.”
Coach Sean Riley, Built Different Health & Wellness
Why I put my name on this
I'm Sean Riley, Director of Athletics and Head Football Coach at Mercy Culture Preparatory in Fort Worth, Texas. So many of the people I do life with are on peptides, and around the dinner table I kept hearing the same stories: dirty peptides, mixes that went wrong and wasted a whole vial, and the companies people bought from getting shut down.
My wife, Heather, takes peptides too, and it concerned me that anyone can bounce from website to website and order whatever they want with no blood work. When Pat Schatzline, my spiritual father, told me about Drs. Mark & Michele Sherwood at Functional Medical Institute, I knew this was different: comprehensive blood work first, peptides from pharmacies they've trusted for years, and doctors overseeing the whole plan.
If you want to do this the right way, start here. Their team does the work; I just get to point you to them.
What you get at FMI
Comprehensive blood work
Far more than a one-page panel: it shows what your body actually needs.
Physician-directed peptides
Prescribed, dosed and monitored by doctors, from pharmacies they trust.
Built for athletes and families
Recovery, energy and performance for every season of life.
A plan you can trust
Personalized care from a team that has used peptides for over 15 years.
Functional Medical Institute
Meet Drs. Mark & Michele Sherwood
With over fifty years of combined experience in medicine and wellness, the Sherwoods lead a full-time wellness-based medical practice built on a whole-person approach. They are not here to manage your disease. They are here to end it.

Dr. Michele Neil-Sherwood, DO
Board-certified physician and Fellow in Osteopathic Internal Medicine; IFM and AMMG certified practitioner. A former national physique champion with black belts in taekwondo and judo, she pairs deep medical training with a passion for natural healing, and she teaches clinicians worldwide on nutrigenomics and nutrigenetics.
Dr. Mark Sherwood, ND
Doctor of Naturopathy certified in age management, peptide therapy, hormone therapy, nutrigenetics, GI health, and immunology. A 24-year veteran of the Tulsa Police Department (a decade on SWAT), former Oklahoma state bodybuilding champion, and ex-professional baseball player.
1
Eradicate self-imposed, choice-driven disease conditions.
2
Eliminate the usage of unnecessary medications.
How FMI Cares for the Whole Person
A science-based approach with unique, personal plans built from diagnostics, experience, and proven results. In person or via telehealth, no matter where you live.
Peptide Therapy
Physician-directed protocols from the doctors who wrote the book on peptides.
Hormone Balance
Bioidentical optimization guided by comprehensive lab work.
Deep Lab Panels
Blood work that looks for optimal, not just “normal.”
DNA Analysis
Nutrigenomics and nutrigenetics tailored to your unique biology.
Nutrition & Medical Food
Food-first plans, supplementation, and proprietary formulations.
Exercise Prescription
Movement plans matched to your body and goals.
Rest & Stress Management
Sleep, recovery, and resilience are part of every plan.
Immune & Gut Health
GI health and immune resiliency from the root cause up.
No consult required
Kingdom Health
Not ready for lab work and a full program? Kingdom Health is Functional Medical Institute's own supplement line, formulated by Drs. Mark and Michele Sherwood, plus the group detoxes they run through the year. No blood work, no consultation, no waiting. Create an account through the link below and your orders stay connected to us.
Learn from the doctors
Peptides Unlocked
The Sherwoods literally wrote the guide on peptide therapy. Peptides Unlocked: A Guide to Health, Longevity, and Performance covers everything from BPC-157 and CJC-1295 to peptides for longevity, cognition, immunity, and fat loss. It's the same expertise behind every protocol they prescribe.
They've also co-authored bestselling books including The Quest for Wellness, Fork Your Diet, Surviving the Garden of Eatin', and The Narrow Road. They host the shows Furthermore and Living the Wellness Life, and have produced films including the Fork Your Diet documentary.


The newest release
Authentic Longevity
The Sherwoods' latest book brings their whole-person approach to living longer and living well. It's the perfect starting point before your first consultation, and the same philosophy you'll experience as their patient.
Get Authentic Longevity on Amazon →Free 30-minute webinar
What Your Doctor Sees (and What They Don't)
Ever been told your labs are “normal” but you still don't feel right? Reference ranges are built on an average population that's already unwell. Join Drs. Mark & Michele Sherwood to learn what your results may be missing, and what happens in your body before disease develops.
Reserve Your Spot →Book a Consultation
Tell me a little about yourself and the Functional Medical Institute team will reach out personally, usually within a day or two: your health history, your goals and any labs you already have, and a clear plan for what's next.