David DeMarco MD

“Normal” labs don’t always mean optimal health.

David DeMarco, MD and DexaFit Cincinnati have partnered with Vitality to bring you a functional and performance-focused bloodwork review that finds the signal inside your labs and turns it into clear direction for nutrition, lifestyle, and prevention, when it matters most: before disease sets in.

More than bloodwork: a complete system for health and performance

Performance Bloodwork

100+ biomarkers analyzed through a performance framework, not clinical ranges.

Constraint-Based Analysis

Your physiology interpreted as a system with a clear priority, narrative, and direction.

Performance Protocol

A targeted 13-week protocol across training, nutrition, lifestyle, and supplementation.

Vitality Score

One number that captures your readiness to perform at peak potential.

Wearable Integration

Baselining and trend tracking to measure improvement across each Vitality cycle.

Three steps One clear direction

  1. STEP 1

    Complete your blood work

    Have your labs drawn at DexaFit Cincinnati, or any Quest in the region

  2. STEP 2

    INTERPRET YOUR RESULTS WITH DR. DEMARCO

    Consult with Dr. DeMarco for a 60-minute physician-guided strategy session that connects your lab findings to your body composition, metabolic health, fitness, risk profile, and goals.

  3. STEP 3

    IMPLEMENT THE PLAN, THEN RETEST

    Use your results to guide targeted changes in nutrition, lifestyle, supplements, and prevention, then return in six months to retest and refine the plan.

Measure precisely. Interpret clearly. Act intentionally. Retest. By combining functional bloodwork with DEXA, RMR, and VO₂ testing, we connect what’s happening inside your body with how it’s performing, then build a clearer path toward better health before disease sets in.

Order Foundational Lab Panel

About dr. demarco

I’ve dedicated my practice to helping people build stronger, healthier, more resilient bodies. Vitality allows us go deeper together—not just guiding your workouts or nutrition, but showing you exactly how your body is functioning at the cellular level and removing the constraints holding you back from your best. No more guesswork. Just results.

24+Years of clinical practice
Physician ledLabs, DEXA, RMR, and VO₂ Max interpretation
100+Performance biomarkers analyzed per client
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Every cycle turns data into direction

Most approaches flag markers one-by-one using a clinical perspective. With Vitality we’ll read your entire physiology as a system to remove your root cause constraints.

Investigate

Comprehensive panels with markers chosen to understand mental and physical performance potential.

Interpret

We read the full physiology to isolate performance constraints. Delivering a narrative analysis with clear priorities.

Intervene

A directed plan across lifestyle, nutrition, and supplementation. Built into a 13-week cycle that removes constraints.

Investigate
Interpret
Intervene
Retest
Each cycle removes constraints so health and performance improvement compounds.

We won’t flag markers we’ll maximize your health and performance

Typical platforms

Biomarker Report Card

  • Clinical disease and longevity ranges
  • Binary flags: in range or out of range
  • Longevity and disease-prevention
  • AI-generated, no published methodology
  • Results and protocol are a list, not a hierarchy
  • Scattered biomarker protocols
Vitality

The Vitality Difference

  • Performance-specific thresholds
  • Interpreted using goals and context
  • Mental and physical performance
  • Models built by published scientists
  • Results clearly prioritize systemic constraints
  • Protocols for systemic constraints

Ready to Take the Next Step?

The Foundational Longevity Lab Panel is $750 and includes a comprehensive lab panel of greater than 100 biomarkers, followed by a 60-minute, MD-guided review of your results and personalized recommendations.

The Foundational Panel is also available as part of the Annual Optimization Bundle, designed to provide ongoing insights and support throughout the year.

Dr. DeMarco is ready to give you a clearer picture of your health—and help you turn those insights into meaningful next steps.

Get started

Backed by the scientists behind world champions, delivered by David DeMarco MD

The Vitality team has spent careers working with elite athletes across the UFC, NFL, NBA, Formula 1, and the Olympics. These exact methods, not generalized AI algorithms, are the engine behind every interpretation and protocol I deliver with Vitality.

Vitality Coach

David DeMarco MD

Founder and Medical Director of DexaFit Cincinnati, Dr. DeMarco is board-certified in Family and Lifestyle Medicine, with 25 years of experience. His approach draws from conventional medicine, functional medicine, and exercise and metabolic physiology to identify leading health indicators—helping patients act before disease takes hold.

Vitality team

Dr. Andy Galpin

Ph.D. in Human Bioenergetics. 100+ peer-reviewed publications. Performance consultant to elite athletes across the UFC, NFL, MLB, NBA, PGA, Olympics, and Special Forces. His research on muscle adaptation and exercise physiology is the foundation of every Vitality interpretation.

Vitality team

Dr. Tommy Wood

M.D. from Oxford. Ph.D. in Neuroscience from Oslo. Head scientist for motorsport at Hintsa Performance, overseeing performance programs for Formula 1 drivers. His research on brain health and metabolic function shapes Vitality’s cognitive and metabolic performance models.

Vitality team

Dan Garner

Sports nutritionist and bloodwork specialist with 75+ professional athletes across 13 sports, including Super Bowl champions, UFC title winners, Olympic medalists, and MLB MVPs. His interpretive frameworks are the backbone of Vitality’s constraint identification and protocol architecture.

Frequently asked questions

About Vitality

How is Vitality different from my doctor’s bloodwork?

Your doctor uses clinical reference ranges designed to detect disease. If nothing is critically wrong, you’re told you’re “fine.” Vitality uses a performance model that reads your biology as a system to identify what’s actually limiting your energy, focus, recovery, and resilience, even when your doctor says everything looks normal.

How is Vitality different from other bloodwork platforms?

Most platforms either tell you you’re fine or flag individual markers and leave you with a list. No prioritization, no context, no plan. Vitality reads your biology as a system, identifies the constraint that matters most, and delivers a targeted protocol.

What is a “constraint”?

A constraint is the specific physiological bottleneck that’s limiting your performance. Instead of flagging every marker that’s outside a range, Vitality identifies the one system-level issue that, if resolved, would have the greatest impact on how you feel and perform.

What is the Vitality Score?

The Vitality Score is a proprietary metric that takes all of your biomarkers and health factors into account and represents your overall readiness to perform. It’s a single, trackable number that shows progress over time.

Who is Vitality for? Do I need to be an athlete?

No. Performance is personal. Whether you’re an executive, a parent, a coach, a weekend athlete, or someone who just wants more energy and sharper focus, Vitality meets you where you are.

Process & Logistics

How does the blood draw work?

After choosing your plan, you’ll schedule a blood draw at one of 2,000+ lab locations nationwide or arrange a mobile phlebotomy provider. It’s a standard blood draw. Quick and simple.

Where can I get my blood drawn?

Vitality’s lab network covers 2,000+ locations across the United States. You’ll choose a convenient location during the scheduling process. Mobile phlebotomy is also available in many areas.

Is Vitality available outside the US?

Currently, Vitality’s lab network is US-based. We’re actively working on expanding internationally. If you have bloodwork from another country, you may be able to use the Upload plan.

Are there any states where Vitality isn’t available?

Vitality is available in all US states except Hawaii. Due to state regulations, consumers in New York and New Jersey cannot schedule blood draws through our platform, but may be able to use the Upload plan with labs sourced locally.

What if I already have recent bloodwork?

Our Upload plan is designed for exactly this. Bring your recent labs and we’ll run them through the Vitality model to deliver your analysis and performance plan.

Results & Performance Plans

What does my performance plan include?

Your plan includes specific, directed recommendations across four domains: lifestyle and behavior, exercise and training, nutrition, and supplementation. Everything is targeted to the constraints identified in your bloodwork, not generic advice.

How long should I follow my performance plan?

Each plan is designed for a 13-week cycle. After that, we recommend retesting to track your progress, prove improvement, and identify the next constraint to address.

How often should I retest?

We recommend retesting every 13 weeks (quarterly) for optimal tracking. Semi-annual retesting works well too. The key is consistency: each cycle builds on the last.

What are functional areas?

Functional areas are the 13 physiological systems Vitality analyzes: energy production, oxygen delivery, hormone balance, gut health, cognitive function, immune resilience, and more.