Aubrey Marcus

Own the Day, Own Your Life, published in 2018, organises its advice around a single day, from the first glass of water on waking through work, learning, food, training, play and sleep. Aubrey Marcus holds no medical, nutrition or exercise science qualification. He founded the supplement and fitness equipment company Onnit in Austin, Texas in 2010, after several years running a small marketing agency, and Unilever bought the business in 2021. A number of the routines the book recommends map onto product categories Onnit sold, which is worth holding in mind at every point where a supplement is suggested. Marcus hosts an interview podcast that runs to hundreds of episodes and has published poetry and spoken word. The book reads best as one entrepreneur's assembled personal routine rather than as clinical guidance.