Why Gut Health Affects Everything with Cheryl Sew Hoy

In this episode, Cheryl Sew Hoy explains how gut health affects immunity, mental health, hormones, and resilience, drawing on both microbiome science and her own experience building Tiny Health. She shares how a deeply personal journey into motherhood led her to rethink gut health as a foundation for lifelong wellbeing, and why the microbiome - particularly in the first 1,000 days of a babies life - plays a critical role in immune health, resilience, and mental health.The conversation moves through what the gut actually does, why balance and diversity matter more than eliminating bacteria, and how the gut–brain connection works, including the surprising number of key hormones produced in the gut. Cheryl also explains why testing and education offer clearer direction than supplements or guesswork, and how factors like birth interventions, antibiotics, diet, sleep, and stress shape gut health over time. Alongside this, she reflects on entrepreneurship, parenting, and sleep, and what it means to live a bountiful life that feels full, without taking life too seriously.Episode HighlightsHow gut health influences immunity, mental health, energy, and resilienceThe gut–brain connection and the surprising number of hormones produced in the gutWhy the first 1,000 days of a babies life matters for expecting parents, mothers and fathers. Testing versus guessing in a crowded wellness landscapeWhat entrepreneurship teaches us about patience, perspective, and long-term thinkingLiving a bountiful life as something full, complex, and ongoingTimestamps 00:00 — Why gut health matters and what sparked Tiny Health09:00 — What living a bountiful life means to Cheryl12:30 — Gut health basics and why balance matters more than trends18:00 — The gut–brain connection and hormones made in the gut26:00 — Diet, fibre, fermented foods, and supporting gut health33:00 — The first 1,000 days and why gut health matters for parents55:00 — Entrepreneurship, long-term thinking, and perspective01:02:00 — Sleep, resilience, and not taking life too seriouslyGuest Bio: Cheryl Sew Hoy is an entrepreneur, speaker, angel investor, and founder & CEO of Tiny Health, a health-tech company focused on evidence-based gut microbiome testing for families. She launched Tiny Health in 2020 after her first child faced eczema, sleep challenges, and food sensitivities, which led her deep into microbiome science and the importance of the first 1,000 days of life. Cheryl holds a bachelor’s degree in Operations Research and Industrial Engineering and a master’s in Engineering Management and Data Mining from Cornell University. Before Tiny Health, she co-founded the software startup Reclip.It, which was acquired by Walmart Labs, and served as the founding CEO of the Malaysian Global Innovation and Creativity Centre (MaGIC), building the region’s startup ecosystem. She’s known for blending technical expertise with a systems perspective on health, startups, and resilient living.About the Bountifull PodcastThe Bountifull Podcast explores what it means to live a bountiful life through honest, thoughtful conversations with interesting people from diverse backgrounds, sharing real stories, lessons, and reflections on work, life, and meaning.https://www.bountifullworld.com/