Brianna joined HVMN as Research Lead after completing her Ph.D. in Metabolic Physiology at the University of Oxford. Dr. Stubbs was part of the research group led by Professor Kieran Clarke that invented and conducted a number of animal and human studies relating to ΔG ketone ester, exogenous ketones, and HVMN Ketone Ester.

While she was completing her Ph.D., she was a professional rower with Team Great Britain and a two-time champion at the World Rowing Championships. Since ‘retiring’ Brianna has been ‘taking it easy,’ competing in cycling, running and triathlon. In her triathlon debut in 2017, she placed first overall and qualified for the USA National Championships.

As Research Lead, Brianna provides oversight on the scientific research behind all of the HVMN products. She’s a world expert in ketone metabolism and consults with elite sport, military, clinical and research organizations. She sets the research agenda at HVMN and forges strategic research partnerships with top academic and research organizations to improve and create new technologies for human performance.

Personal Achievments
Double World Champion lightweight rower
Youngest person to row the English Channel aged 12
One of the BBC’s ‘100 Women’ for 2016
Lead/co author on scientific research papers
Half IronMan 2018 World Championship Qualifier (5hr23min)
Biohacking Goals
Optimise work: life: athlete balance
Achieve hormonal equilibrium post-lightweight rowing
Regular mindfulness practice
1h 30’ half marathon
3h 30’ marathon
2h 30’ Olympic Distance Triathlon
5h Half Ironman
Biohacking Interests
Signalling roles of BHB
Potential therapeutic uses of exogenous ketones
Plant based supplements for metabolic health


Commentary: Ketone Diester Ingestion Impairs Time-Trial Performance in Professional Cyclists.
Stubbs BJ, Koutnik AP, Poff AM, Ford KM, D'Agostino DP. Front Physiol. 2018;9:279.
A Ketone Ester Drink Lowers Human Ghrelin and Appetite.
Stubbs BJ, Cox PJ, Evans RD, Cyranka M, Clarke K, de Wet H. Obesity. 2018;26(2):269-273.
On the metabolism of exogenous ketones in humans.
Stubbs B, Cox P, Evans R, et al. Front Physiol. 2017; 8:848.
Nutritional Ketosis Alters Fuel Preference and Thereby Endurance Performance in Athletes.
Cox, P.J., Kirk, T., Ashmore, T., Willerton, K., Evans, R., Smith, A., Murray, Andrew J., Stubbs, B., West, J., McLure, Stewart W., et al. Cell Metabolism. 2016;24:1-13.


Brianna Stubbs talks about Ketone Esters and their application in sport
Nourish Balance Thrive
World Champion Rower and Ketone Monoester Researcher Brianna Stubbs
Biohacker Labs
Exogenous Ketones Supplements Explained by Dr Brianna Stubbs
Sigma Nutrition Podcast
Brianna Stubbs, PhD – Ketogenesis, Metabolism and Ketone Ester Supplementation
LLMA Podcast
Record-Breaking British Rower Biohacking for Human Longevity