Dr. Will Bulsiewicz, MD - The #1 Nutrient for Longevity That Everybody Still Ignores episode artwork

EPISODE · Jan 1, 2026 · 1H 38M

Dr. Will Bulsiewicz, MD - The #1 Nutrient for Longevity That Everybody Still Ignores

from Longevity Optimization with Kayla Barnes-Lentz · host Kayla Barnes-Lentz

In this video, Dr. Will Bulsiewicz shares his transformation from an overweight, depressed gastroenterologist to a gut health expert after meeting his now-wife changed his entire approach to food. He reveals why 95% of Americans are fiber deficient and how this single nutrient could be the key to longevity. Dr. B breaks down the science of the gut microbiome, explains why hyperpalatable foods force us to overeat 500 extra calories per day, and shares actionable strategies for rebuilding your gut health in as little as 3-5 days.Guest’s socials + websiteInstagram: @theguthealthmd Website: https://theguthealthmd.com/ Kayla's social + website:Instagram:  https://www.instagram.com/kaylabarnes/TikTok: https://www.tiktok.com/@femalelongevityTwitter: https://x.com/femalelongevityWebsite: https://www.kaylabarnes.comSpotify: https://open.spotify.com/show/4OLWWn22RGB0argbRPvAaQApple: https://podcasts.apple.com/us/podcast/longevity-optimization-with-kayla-barnes-lentz/id1591130227Follow Her Female Protocol: https://www.protocol.kaylabarnes.comBecome a Member of Kayla's Female Longevity Membership: https://kayla-barnes-lentz.circle.so/checkout/become-a-member

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Dr. Will Bulsiewicz, MD - The #1 Nutrient for Longevity That Everybody Still Ignores

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This episode was published on January 1, 2026.

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