Dr. Brianna Stubbs, DPhil is a world expert in exogenous ketone metabolism and its implications for performance, resilience and health-span. She completed her PhD in Metabolic Physiology at the University of Oxford, studying the metabolism and the application of exogenous ketone salts and esters. Whilst completing her studies, she competed on the British International Rowing Team, and was a two-time World Champion lightweight athlete.

Brianna spent two years as Research Lead at a San Francisco based start-up called HVMN, where she helped to launch the world's first commercially available ketone ester drink and set up a collaboration with the US Special Operations Command to investigate the effects of ketone drinks on physical and cognitive performance in extreme environments.