Walnut will be the default health infrastructure for the world — starting with software engineers, and expanding to knowledge workers across every high-performance industry.

We envision a future where every digital professional has a personal Health OS — a human+AI system that doesn’t just track steps or symptoms, but actively manages your longevity, productivity, energy, and internal health — in real time.

We are not building another wellness app. We are building the biological co-pilot for modern work — personalized, preventive, and proactive — delivered at scale by a network of world-class health experts on top of a powerful clinical intelligence layer.