Sarah M. from Des Moines, Iowa
booked a strategy call
2 minutes ago
Becoming a new patient at our Franklin, TN functional medicine practice means we dig deeper than anyone else. As a 100% virtual practice, we run 200+ biomarkers across every body system — and we find what others miss. Every consultation happens via secure telehealth, so you can get care from home, anywhere in the country.
Strategy Call
At-Home Lab Kits
Real ResultsMost of our Franklin, TN functional medicine patients arrive after years of searching for answers. If any of these sound familiar, you're in the right place.
You've been told your labs are "normal" but you feel terrible
You've seen multiple doctors with no real answers
You're exhausted, foggy, and can't figure out why
You're on multiple medications but still not well
You suspect something deeper is going on
You've been diagnosed with an autoimmune condition
You struggle with weight despite doing "everything right"
You have gut issues that no one has been able to resolve
You want to understand the root cause — not just manage symptoms
The average conventional visit lasts 7 minutes — barely enough time to write a prescription, let alone investigate why you're sick in the first place.
Standard reference ranges are drawn from a sick population. You can be in the bottom 2.5% of a diseased group and still be told everything looks 'fine.'
Conventional care matches a diagnosis to a drug. We match your symptoms to the underlying dysfunction — gut, hormones, toxins, nutrients — and correct it.
You're told you'll be on this medication forever. We build a plan to restore function so you can work with your prescriber to reduce or eliminate medication.

We listen. We investigate. We build a plan that's uniquely yours — backed by 200+ biomarkers, not guesswork.
A clear, structured onboarding process designed to uncover your root causes and build a personalized functional medicine roadmap back to health.
Schedule a 30-minute call with Dr. Mannie's clinical team at our Franklin, TN functional medicine practice. This is a no-pressure conversation to understand your health history, your goals, and whether our approach is the right fit for you.
30 minAfter booking, you'll receive a detailed health history questionnaire. This helps Dr. Mannie review your case thoroughly before your first visit — so we can hit the ground running.
20–30 min • OnlineWe order comprehensive functional lab panels that go far beyond standard bloodwork — thyroid, hormones, gut health, toxins, nutrients, genetics, and more. Franklin, TN patients can complete most labs from home or at a local draw center.
1–2 weeks • At-home or local labYour first full appointment is a 60–90 minute deep dive via secure telehealth. Dr. Mannie reviews your labs, health timeline, and symptoms to identify the root causes driving your condition.
60–90 min • Virtual TelehealthYou receive a customized healing protocol — nutrition, targeted supplements, lifestyle changes, and any additional therapies. Everything is explained clearly with a written action plan.
Delivered after consultationHealing takes time. We schedule regular follow-up visits to track your progress, adjust your protocol, and celebrate your wins. You're never left to figure it out alone.
Monthly or as neededTransparency is core to our Franklin functional medicine practice. Here's what you should know before becoming a patient.
Functional medicine is not a quick fix. Expect 3–6 months to see significant, lasting improvements — though many patients feel better within weeks.
All consultations happen via secure, HIPAA-compliant telehealth — no travel, no waiting rooms, no rushed visits. Meet with Dr. Mannie's team from the comfort of home, anywhere in the country.
We run advanced labs not typically ordered by conventional doctors. These tests reveal hidden imbalances that are often the true root cause of your symptoms.
You'll have direct access to Dr. Mannie's team between visits. Questions are welcomed and answered — we want you to feel supported throughout your journey.
We are a cash-pay practice. While we don't accept insurance directly, many patients use HSA/FSA funds. We provide superbills for potential out-of-network reimbursement.
You are a partner in your healing. The best results come when patients are committed to the dietary, lifestyle, and supplement recommendations in their protocol.

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."
These are the stories of patients who were told there was nothing more that could be done — and who chose to look deeper.

"I was told I'd just have to live with the fatigue. Dr. Mannie proved them wrong."
"After 4 years on Metformin and still feeling exhausted, Dr. Mannie found my issue was cellular resistance and gut inflammation. Within 90 days on his protocol, my energy is back and I've lost 15 pounds that wouldn't budge before."
"I was told I'd just have to live with the fatigue. Dr. Mannie proved them wrong. Within 90 days on his protocol, my energy is back and I've lost 15 pounds that wouldn't budge before."
"I was told my fasting glucose was 'normal' — meaning they had no idea why I felt so terrible. The functional labs revealed elevated fasting insulin and systemic inflammation. The targeted protocol changed everything."
"As a nurse, I was skeptical of anything outside conventional medicine. But when conventional medicine failed my Type 2 Diabetes for three years, I had nothing to lose. The root cause approach is exactly what I wish I had been taught."
"The difference between this approach and everything else I tried is that it actually makes sense. They found the cause — chronic gut inflammation and heavy metal toxicity triggering my immune system — and addressed it systematically."
"I had given up on ever having energy to play with my grandkids. The functional protocol — particularly the gut healing and targeted nutrient support — gave me my life back."
"Three specialists and a decade of suffering. One functional consultation changed the trajectory completely. My metabolic dysfunction had a root cause — and now it has a solution."
"I lost 47 pounds with Dr. Mannie's protocol without starving or resorting to injections. I sleep better, my anxiety is down, and I have boundless energy throughout the day."
"I was told I'd just have to live with the fatigue. Dr. Mannie proved them wrong. Within 90 days on his protocol, my energy is back and I've lost 15 pounds that wouldn't budge before."
"I was told my fasting glucose was 'normal' — meaning they had no idea why I felt so terrible. The functional labs revealed elevated fasting insulin and systemic inflammation. The targeted protocol changed everything."
"As a nurse, I was skeptical of anything outside conventional medicine. But when conventional medicine failed my Type 2 Diabetes for three years, I had nothing to lose. The root cause approach is exactly what I wish I had been taught."
"The difference between this approach and everything else I tried is that it actually makes sense. They found the cause — chronic gut inflammation and heavy metal toxicity triggering my immune system — and addressed it systematically."
"I had given up on ever having energy to play with my grandkids. The functional protocol — particularly the gut healing and targeted nutrient support — gave me my life back."
"Three specialists and a decade of suffering. One functional consultation changed the trajectory completely. My metabolic dysfunction had a root cause — and now it has a solution."
"I lost 47 pounds with Dr. Mannie's protocol without starving or resorting to injections. I sleep better, my anxiety is down, and I have boundless energy throughout the day."
Everything you need to know before booking your first virtual call with our practice.
Book a 1-on-1 virtual strategy call with Dr. Brandon Mannie's clinical team. No pressure, no obligation — just an honest conversation about your health and whether we can help.
Looking for expert functional medicine care for functional medicine new patient 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 new patient 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.