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Simon Hill, BSc, MSc

Co-Founder and Co-CEO
38TERA
Byron Bay, New South Wales, Australia

Simon Hill is a physiotherapist and nutrition scientist dedicated to making health and nutrition information clear, accessible, and actionable. He is the author of the bestselling book The Proof is in the Plants, which advocates for a plant-rich diet grounded in the latest scientific evidence. The book debuted as Australia’s #1 non-fiction title, reflecting its widespread impact and resonance. Simon is also the host of The Proof podcast, which has surpassed 40 million listens. Each episode features leading experts translating complex research into practical insights across nutrition, sleep, exercise, and relationships. In addition to his writing and podcasting, Simon leads immersive retreats that teach participants how to live a science-based lifestyle that supports health, happiness, and longevity.

As Co-Founder and Co-CEO of 38TERA, Simon works alongside gastroenterologist Dr. Will Bulsiewicz to develop gut health supplements that are clinically informed, microbiome-supportive, and designed for real-life use. Together, they’re raising the bar within the supplement industry by prioritizing not only clinical effectiveness, but also transparency, safety, and integrity in a space that has historically lacked regulation and accountability.
In his spare time, Simon enjoys hosting game nights with friends, playing Padel, surfing, skydiving, and wake surfing. When it’s time to recharge, he heads home to Byron Bay in Australia to slow down and reconnect.

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