Live Well Be Well with Sarah Ann Macklin | Health, Lifestyle, Nutrition

Wil Bulsiewicz: Why Fiber Is the One Nutrient That Reduces Your Risk of Every Major Disease

May 29, 2026·8 min
Episode Description from the Publisher

Are you eating more fiber but still dealing with bloating or gut pain? That can happen when you increase fiber faster than your gut can handle, and it’s why the type of fiber and the pace you add it really matters. This clip explores why fiber is described as a key “longevity nutrient,” with evidence linked to lower risk of major diseases like heart disease, cancer, stroke, diabetes, Alzheimer’s, and chronic kidney disease.This segment examines what fiber actually is, where it comes from (all plant foods, plus mushrooms as an “honorary plant”), and the practical difference between soluble and insoluble fiber. We also talk about why variety matters, how fiber feeds the gut microbiome and supports short chain fatty acid production, and why focusing on protein shouldn’t come at the expense of fiber when most people are already under-consuming it.Will Bulsiewicz in conversation with Sarah Ann Listen to the full episode⁠⁠ ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠here⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠.⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Watch the full episode on YouTube ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠here⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠.⁠⁠⁠⁠⁠⁠⁠***This episode is sponsored by:NOWATCH: The compassionate health trackerConnecting body and mind with unique stress recovery insights so you can live fully today15% off with code LWBW15 at https://nowatch.com/DIOME: Rest deeper. Stay grounded.Rested is available now and Grounded lands later this month.👉 Get 20% off with code SARAH20 at DIOME.CO***The Great British Veg OutHow to support your gut, energy, and hormones by eating more — not less.👉 https://sarahmacklin.substack.com/p/the-great-british-veg-outReset Your HealthIf your body feels off after stress, travel, or burnout — this is where to start.👉 https://sarahmacklin.substack.com/s/reset-your-health-in-30-days👉 Practical beats perfect.Here’s a free 5-recipe PDF I use to support energy and stress during busy weeks.https://sarahannmacklin.com/5_free_recipes👉 If this resonates, you can join the thousands who readThe Compassionate Cure each week.https://sarahmacklin.substack.com/***Let’s be friends!📷 Instagram: https://www.instagram.com/sarahannmacklin/📹 Subscribe: http://www.youtube.com/@livewellbewellsarah🐦 Twitter: https://x.com/SarahAnnMacklin📱 TikTok: https://www.tiktok.com/@livewellbewellpodcast💌 Newsletter: https://sarahmacklin.substack.com/

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