325. Seed Oils, Healthy Fats, and Why Nutrition Feels So Confusing | Dr. Cate Shanahan episode artwork

EPISODE · Jan 20, 2026 · 59 MIN

325. Seed Oils, Healthy Fats, and Why Nutrition Feels So Confusing | Dr. Cate Shanahan

from Simple Farmhouse Life · host Lisa Bass

If you’ve been trying to eat well but feel stuck sorting through conflicting nutrition advice, this episode is for you.  In this episode, I’m joined by Dr. Cate Shanahan for a practical conversation about why modern nutrition feels so confusing and how traditional diets offer a simpler framework for long-term health.  We talk through how seed oils quietly replaced more nourishing fats in the modern food supply, why they play such a big role in how processed foods impact our health, and how simple fat swaps can make a real difference without changing everything you eat.  If you’re looking for clarity, common sense, and realistic steps you can apply in your everyday life, I think you’ll really enjoy this conversation! In this episode, we cover: - Why so many people feel overwhelmed and confused by modern nutrition advice and how looking to traditional diets helps cut through the noise - Dr. Cate’s background in genetics and family medicine and how one generation’s food choices can shape the next - The four pillars found across traditional cultures that support long-term health (fresh foods, ferments and sprouting, bone broth, and organ meats) - How modern convenience foods quietly replaced nutrient-dense fats with industrial seed oils - Why seed oils are the true driver behind why junk food makes people feel and look unwell - A breakdown of the “Hateful Eight” seed oils to watch for when reading ingredient labels - The difference between toxic seed oils and neutral refined oils and why not all refined fats are equal - How to identify truly healthy fats by taste, labeling, and how they’re processed - Why simply swapping fats (without changing the rest of the meal) can have a major impact on health - The hidden places seed oils show up (even in organic and “healthy” grocery items) - A realistic, low-stress approach to reducing seed oils without trying to overhaul everything overnight - Why consumer demand is finally shifting the food industry toward better fat choices and what that means for home cooks View full show notes on the blog + watch this episode on YouTube. Thank you for supporting the sponsors that make this show possible! RESOURCES MENTIONED Pick up your copies of Dr. Cate’s books:  Deep Nutrition: Why Your Genes Need Traditional Food Dark Calories: How Vegetable Oils Destroy Our Health and How We Can Get It Back Receive Dr. Cate’s email newsletter by signing up here Master the rhythm of sourdough with confidence in my Simple Sourdough course Gain the sewing knowledge and skills every homemaker needs in my Simple Sewing series Keep all my favorite sourdough recipes at your fingertips in my Daily Sourdough cookbook CONNECT Dr. Cate Shanahan | Website | Instagram | Facebook | X Lisa Bass of Farmhouse on Boone | Blog | YouTube | Instagram | TikTok | Facebook | Pinterest Do you have a question you’d like me to answer on the podcast?  A guest you’d like me to interview?  Submit your questions and ideas here: bit.ly/SFLquestions.

If you’ve been trying to eat well but feel stuck sorting through conflicting nutrition advice, this episode is for you.  In this episode, I’m joined by Dr. Cate Shanahan for a practical conversation about why modern nutrition feels so confusing and how traditional diets offer a simpler framework for long-term health.  We talk through how seed oils quietly replaced more nourishing fats in the modern food supply, why they play such a big role in how processed foods impact our health, and how simple fat swaps can make a real difference without changing everything you eat.  If you’re looking for clarity, common sense, and realistic steps you can apply in your everyday life, I think you’ll really enjoy this conversation! In this episode, we cover: - Why so many people feel overwhelmed and confused by modern nutrition advice and how looking to traditional diets helps cut through the noise - Dr. Cate’s background in genetics and family medicine and how one generation’s food choices can shape the next - The four pillars found across traditional cultures that support long-term health (fresh foods, ferments and sprouting, bone broth, and organ meats) - How modern convenience foods quietly replaced nutrient-dense fats with industrial seed oils - Why seed oils are the true driver behind why junk food makes people feel and look unwell - A breakdown of the “Hateful Eight” seed oils to watch for when reading ingredient labels - The difference between toxic seed oils and neutral refined oils and why not all refined fats are equal - How to identify truly healthy fats by taste, labeling, and how they’re processed - Why simply swapping fats (without changing the rest of the meal) can have a major impact on health - The hidden places seed oils show up (even in organic and “healthy” grocery items) - A realistic, low-stress approach to reducing seed oils without trying to overhaul everything overnight - Why consumer demand is finally shifting the food industry toward better fat choices and what that means for home cooks View full show notes on the blog + watch this episode on YouTube. Thank you for supporting the sponsors that make this show possible! RESOURCES MENTIONED Pick up your copies of Dr. Cate’s books:  Deep Nutrition: Why Your Genes Need Traditional Food Dark Calories: How Vegetable Oils Destroy Our Health and How We Can Get It Back Receive Dr. Cate’s email newsletter by signing up here Master the rhythm of sourdough with confidence in my Simple Sourdough course Gain the sewing knowledge and skills every homemaker needs in my Simple Sewing series Keep all my favorite sourdough recipes at your fingertips in my Daily Sourdough cookbook CONNECT Dr. Cate Shanahan | Website | Instagram | Facebook | X Lisa Bass of Farmhouse on Boone | Blog | YouTube | Instagram | TikTok | Facebook | Pinterest Do you have a question you’d like me to answer on the podcast?  A guest you’d like me to interview?  Submit your questions and ideas here: bit.ly/SFLquestions.

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325. Seed Oils, Healthy Fats, and Why Nutrition Feels So Confusing | Dr. Cate Shanahan

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Eat to Live Jenna Fuhrman, Dr. Fuhrman Our health is our most precious gift and smart nutrition can change your life. Each month, join Dr. Fuhrman and his daughter, Jenna Fuhrman as they discuss important topics in the world of nutrition. Eat to Live will change the way you eat and think about food. French Your Way Jessica: Native French teacher founder of French Your Way Boost your French listening skills and test your comprehension with this one of a kind series of podcasts. Get the chance to listen to a real conversation between native speakers talking at normal speed AND customise your learning experience through carefully designed sets of questions (2 levels of difficulty) available for download at www.frenchvoicespodcast.com. All interviews also come with the transcript. French teacher Jessica interviews native speakers of French from around the world who share a bit of their life and passion. Where else would you meet in one same place a French yoga teacher based in Melbourne, a soap manufacturer from Provence, or a couple cycling around the world? That Hoarder: Overcome Compulsive Hoarding That Hoarder Hoarding disorder is stigmatised and people who hoard feel vast amounts of shame. This podcast began life as an audio diary, an anonymous outlet for somebody with this weird condition. That Hoarder speaks about her experiences living with compulsive hoarding, she interviews therapists, academics, researchers, children of hoarders, professional organisers and influencers, and she shares insight and tips for others with the problem. Listened to by people who hoard as well as those who love them and those who work with them, Overcome Compulsive Hoarding with That Hoarder aims to shatter the stigma, share the truth and speak openly and honestly to improve lives. The Lee Olsen Show Lee Olsen CJF I want to help you improve all areas of your life by 3 types of podcasts!👉Blood, Sweat & Blessings-Interviews of normal people that have achieved BIG things!👉Series!!! For Love of the Horse- Brad Jackman DVM & Lee Olsen CJF, how to help your horse!👉Business Tips- Proven Life Changing Business Strategies with Lee Olsen

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This episode was published on January 20, 2026.

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If you’ve been trying to eat well but feel stuck sorting through conflicting nutrition advice, this episode is for you.  In this episode, I’m joined by Dr. Cate Shanahan for a practical conversation about why modern nutrition feels so confusing and...

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