Sarah M. from Des Moines, Iowa
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Franklin, TN Functional Medicine — Root Cause Healing
Looking for functional medicine in Franklin, TN? Conventional medicine treats your symptoms. We investigate why those symptoms exist — and build a personalized roadmap to true, lasting healing via 100% virtual telehealth.
Root-Cause Consultation
Advanced Lab Testing
Therapeutic LifestyleWhy Conventional Medicine Keeps Failing You
You've been to the doctor. You've had the tests. You've been told "everything looks normal." Yet you still feel terrible. Here's why — and what's actually going on for patients across Franklin, TN and Williamson County.
"Normal" labs don't mean healthy
Standard reference ranges are drawn from a sick population — dysfunction can hide inside "normal" for years.
7-Minute Visits
The average primary care appointment lasts just 7 minutes — barely enough time to describe your symptoms, let alone investigate their root cause.
Symptom Suppression
Conventional medicine is designed to manage symptoms with medications — not to find and fix the underlying dysfunction driving those symptoms.
"Normal" Lab Ranges
Standard lab reference ranges are based on sick populations. A result in the "normal" range can still represent significant dysfunction for your body.
Siloed Specialists
Each specialist only sees their piece of the puzzle. No one is connecting the dots between your thyroid, gut, hormones, and immune system.
One-Size-Fits-All
Standard protocols are designed for the average patient. But you are not average — your biochemistry, genetics, and lifestyle are uniquely yours.
Reactive, Not Proactive
Conventional medicine waits for disease to develop before acting. Functional medicine identifies dysfunction years before it becomes a diagnosis.
Franklin Functional Medicine Is Systems Biology Applied to You
Functional medicine is an evidence-based, patient-centered approach that addresses the underlying causes of disease. Rather than asking "What drug matches this symptom?" it asks "Why is this happening — and what does this person's body need to heal?"
It treats the whole person — not just isolated symptoms — by investigating the complex web of interactions between genetics, environment, lifestyle, gut health, hormones, toxins, and stress that drive chronic illness.
Root Cause Analysis
We investigate why, not just what
Genetic Insight
MTHFR, detox pathways, and more
Advanced Testing
Comprehensive labs beyond the basics
Whole-Person Care
Mind, body, gut, and environment
Cognitive Health
Brain fog, mood, and mental clarity
Long-Term Wellness
Prevention, not just treatment
The 6 Pillars We Investigate
Chronic illness rarely has a single cause. We examine every system that drives your health — and find where the breakdown is happening.
Gut & Microbiome
Leaky gut, dysbiosis, SIBO, and digestive dysfunction are at the root of most chronic conditions. We test and treat comprehensively.
Hormones & Endocrine
Thyroid, adrenal, sex hormones, and insulin — imbalances here affect every system in your body. We run the full panel.
Neurological & Brain
Brain fog, anxiety, depression, and cognitive decline often have physiological roots in inflammation, toxins, and nutrient deficiencies.
Immune & Inflammation
Chronic low-grade inflammation and immune dysregulation drive autoimmune disease, allergies, and accelerated aging.
Detoxification
Mold, heavy metals, environmental toxins, and impaired detox pathways (MTHFR) silently drive disease. We find and clear them.
Nutrition & Lifestyle
Food sensitivities, nutrient deficiencies, sleep, stress, and movement are powerful medicine — or powerful poison. We optimize all of them.
Functional Medicine Is Your Answer If...
You've been told your labs are 'normal' but you feel anything but
You're managing symptoms with multiple medications but never getting better
You have an autoimmune condition and want to address the root cause
You struggle with chronic fatigue, brain fog, or unexplained weight gain
You've been diagnosed with thyroid disease but still feel terrible on medication
You suspect mold, heavy metals, or environmental toxins are affecting you
You have gut issues — bloating, IBS, food sensitivities — that won't resolve
You want a proactive partner in your health, not just a prescription writer
Your children have ADHD, autism, or behavioral issues you want to address naturally
You're ready to invest in real answers — not just symptom management
Your Path to Root Cause Healing
A structured, personalized process that leaves nothing to guesswork.
Strategy Call
We start with a strategy call to understand your health history, your biggest challenges, and whether functional medicine is the right fit for you.
Comprehensive Intake
You complete a detailed health history questionnaire covering every system — gut, hormones, brain, immune, toxins, and lifestyle. This is the foundation of your care.
Advanced Lab Testing
We order a comprehensive panel of functional labs that goes far beyond what your conventional doctor runs — including stool analysis, hormone panels, nutrient levels, and toxin markers.
Root Cause Analysis
Dr. Mannie personally reviews your labs and history to identify the specific patterns of dysfunction driving your symptoms — and builds your personalized healing protocol.
Personalized Protocol & Ongoing Support
You receive a detailed, step-by-step protocol covering diet, targeted supplements, lifestyle changes, and any additional testing needed. We monitor your progress and adjust as you heal.
18 Conditions We Address at the Root
We don't just manage these conditions — we investigate and address the underlying dysfunction driving each one.
Dr. Brandon Mannie
Board-Certified Functional Medicine Practitioner
Dr. Brandon Mannie is a board-certified functional medicine practitioner with over 400 hours of post-graduate training in clinical nutrition and functional medicine. He graduated from Northwestern Health Sciences University in 2004 and has been in private practice ever since.
Over the past 20+ years, Dr. Mannie has consulted with more than 3,000 patients — people who were told their labs were "normal," yet still felt far from well. His approach goes beyond symptom management: he investigates the root causes driving chronic illness and builds personalized protocols that restore true, lasting health.
Dr. Mannie sees patients exclusively via 100% virtual telehealth, available nationwide. His clinical expertise includes type 2 diabetes, insulin resistance, metabolic syndrome, weight loss resistance, and neuropathy.
"I've seen patients who were dismissed for years finally get real answers and real results. That's why I do this work."
Amazing Patient Transformations
Are You Next?
JACKIE
Down 47 Pounds!
- Improved Energy!
- Improved Self Confidence!
- Sleeping Better!
- Less Anxiety / Depression!
DEB
Down 32 Pounds!
- Improved Digestion!
- Increased Energy Throughout The Day!
- Loving Life Again!
BRITTNEY
Down 53 Pounds!
- Improved Energy & Less Afternoon Fatigue!
- Improved Confidence!
KELLY
Down 34 Pounds!
- Less Fatigue!
- Improved Sleep!
KAREN
Down 32 Pounds!
- Brain Fog Gone!
- Less Tired!
- Better GI Function!
JACKIE
Down 27 Pounds!
- Improved Energy!
- Greater Mental Clarity!
SUE
Down 54 Pounds!
- Less Inflammation!
- Less Fatigue!
- Improved Gut Health!
AMANDA
Down 64 Pounds!
- Improved Energy!
- Loving Life Again!
JACKIE
Down 47 Pounds!
- Improved Energy!
- Improved Self Confidence!
- Sleeping Better!
- Less Anxiety / Depression!
DEB
Down 32 Pounds!
- Improved Digestion!
- Increased Energy Throughout The Day!
- Loving Life Again!
BRITTNEY
Down 53 Pounds!
- Improved Energy & Less Afternoon Fatigue!
- Improved Confidence!
KELLY
Down 34 Pounds!
- Less Fatigue!
- Improved Sleep!
KAREN
Down 32 Pounds!
- Brain Fog Gone!
- Less Tired!
- Better GI Function!
JACKIE
Down 27 Pounds!
- Improved Energy!
- Greater Mental Clarity!
SUE
Down 54 Pounds!
- Less Inflammation!
- Less Fatigue!
- Improved Gut Health!
AMANDA
Down 64 Pounds!
- Improved Energy!
- Loving Life Again!
Franklin, TN Functional Medicine — Your Questions Answered
Ready to Find Your Root Cause and Finally Reclaim Your Health?
Book a 1-on-1 virtual strategy call with Dr. Brandon Mannie's clinical team. No obligation, no hard sell — just clinical clarity on your path forward via secure telehealth.
Functional Medicine Care in Franklin, TN
Looking for expert functional medicine care for functional medicine in Franklin, TN? Functional Health Advantage is based in Franklin, Tennessee, serving patients across Williamson County and the greater Nashville area with root-cause functional medicine treatment — delivered via 100% virtual telehealth, available nationwide.
Our Location
Highwoods Cool Springs III
725 Cool Springs Blvd #600
Franklin, TN 37067
Office Hours
Mon–Fri
8:00 AM – 5:00 PM
Sat: By Appointment
Service Area
14+ Middle TN communities
Brentwood, Thompson's Station, Spring Hill, & more
Serving patients across Franklin, Brentwood, Thompson's Station, Spring Hill, Nolensville, Fairview, College Grove, Arrington, Triune, Leiper's Fork, Grassland, Murfreesboro, Nashville, Bellevue, Belle Meade, and Middle Tennessee. Prefer to meet from home? Telehealth appointments are available nationwide.
