The First Molecular Fitness Blood Test™

VO₂ Max is the gold-standard metric of cardiorespiratory fitness: a vital sign, according to the American Heart Association, and the best known predictor of human longevity, healthspan, and athletic performance. But this crucial metric is difficult, costly and time consuming to measure.

VO Health has been on a mission to take gold-standard VO2 Max CPET testing and make it easier to do, and to go beyond oxygen alone to understand the molecular signatures of fitness in the blood. Now we've done it.

Introducing Molecular Fitness: the real-time biological readout of your body's cardiorespiratory capacity measured by the proteins circulating in your blood right now.

Your blood proteome encodes the cumulative signal of every system involved in oxygen delivery and utilization: how actively your capillaries are growing, how efficiently your cells burn fat, how well your mitochondria are generating energy, and how effectively your body recovers from physical stress.

Your Molecular Fitness profile is uniquely yours.

Molecular Fitness is distinct from traditional fitness metrics because it is mechanistically grounded: each score is traceable to specific biological pathways, each pathway to specific proteins, and each protein to a known physiological function.