The first blood test of VO₂ Max.
Test your fitness with a simple, home blood test. Uncover how pathways like inflammation, fat metabolism and oxidative stress impact your performance and longevity.
Reserve a Test
Lock in early pricing, secure your spot
$189
Self-collection blood sample kit
Prepaid return shipping
Molecular lab analysis, report & insights
Results review with VO Health's scientists
On-demand support
Reserve a test kit with a $1 deposit. You won't be charged the full amount until kits are ready to be shipped in the coming months. Early spots are limited.
The Molecular Fitness Blood Test™ puts gold-standard VO₂ Max testing into a simple, at-home blood test. It goes beyond oxygen alone to estimate and map the unique molecular signatures of fitness from unique proteins in the blood.
Why VO₂ Max?
VO₂ Max is the gold-standard of cardiorespiratory fitness, a crucial metric of endurance performance, and the best independent clinical predictor of all-cause mortality and chronic disease. Long considered a vital sign by the American Heart Association, this crucial metric is difficult, costly and time consuming to measure using traditional testing methods.
VO Health has been on a mission to take laboratory-grade VO₂ Max testing and make it easy and scalable for athletes, clinicians, coaches and health enthusiasts to do.
How We Built the Test
Our Molecular Fitness Blood Test is Built on gold-standard lab measurement, deep proteomic profiling, and machine learning trained on thousands of human samples. Our dataset includes a wide range of individuals, ages 18-82, including Olympic rowers, triathletes, marathon runners and cyclists to individuals in their late 70s living with chronic diseases, and everybody in between.
The result: a Molecular VO₂ Max estimate, a unique Molecular Fitness Score, and 10 biological pathway scores that sit underneath your scores - pathways such as inflammation, fat metabolism, oxygen transport and oxidative stress.
1,000 proteins measured per sample
Each blood sample is run through cutting-edge high-throughput proteomics technology that quantifies 1,000+ distinct proteins.
50-protein algorithm
Our model selects the 50 most strongly associated with fitness to estimate VO2 Max and the underlying molecular pathways.
How It Works
We designed our test to be easy, fast and convenient. Once your blood test kit is ready to ship, it arrives at your home or location of choice, takes 5 minutes to complete and ship back to our lab.
What You Receive: Molecular Fitness Report
Get Early Access
Reserve a test kit with a $1 deposit. We encourage you to reserve your kit to secure early pricing prior to official launch in 2027.
Reserve a test
Lock in early pricing, secure your spot
$189
2027 price $399
Self-collection blood sample kit
Prepaid return shipping
Molecular lab analysis, report & insights
Results review with VO Health's scientists
On-demand support
Join the waitlist for $1
Reserve a test kit with a $1 deposit. You won't be charged the full amount until kits are ready to be shipped in the coming months. Early spots are limited.
Frequently asked questions
This test and report is intended to assist you in maintaining and encouraging a healthy lifestyle, and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. The physiological values contained in this report are not provided for medical or clinical purposes. Consult a qualified healthcare provider before making any health-related decisions.