RHR: Seed Oils and Colon Cancer – What the New Research Really Shows
Revolution Health Radio
Chris Kresser
4.7 • 1.7K Ratings
🗓️ 16 December 2025
⏱️ 20 minutes
🧾️ Download transcript
Summary
Seed oils have become one of the most controversial topics in nutrition, especially after a 2024 University of South Florida study linked high omega-6 levels with inflammation in colon tumors. In this episode of Revolution Health Radio, Chris takes a deep, evidence-based look at what the study actually means — and what it doesn’t. You’ll learn the crucial difference between naturally occurring omega-6 fats in whole foods like nuts, chicken, and avocados and oxidized omega-6 fats found in ultra-processed foods and industrial seed oils. He explains why awareness of the omega-6 to omega-3 ratio and the issues of the modern Western diet are far more important than demonizing individual oils and offers practical advice on which cooking oils to use, which to limit, how to improve omega-3 intake, and how to adopt a balanced approach to dietary fats without fear or obsession.
The post RHR: Seed Oils and Colon Cancer – What the New Research Really Shows appeared first on Chris Kresser.
Transcript
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| 1:11.6 | Welcome to another episode of Revolution Health Radio. |
| 1:14.4 | If you spend any time on social media lately, you've probably seen a lot of chatter around seed oils. |
| 1:20.0 | A study came out from the University of South Florida in late 2024, linking omega-6 fatty acids to colon cancer. |
| 1:27.4 | And the internet did what the internet does best. |
| 1:30.1 | It went absolutely bananas. You've got one side screaming that seed oils are poison and you |
| 1:34.6 | should never, ever let a drop touch your lips. And then you've got the other side saying the fears |
| 1:39.9 | are completely overblown and seed oils are perfectly fine. As usual, the truth is somewhere in the |
| 1:45.4 | middle. In this episode, we're going to talk about what the study found, what it means for your health, |
| 1:51.4 | and most importantly, how to think about seed oils in a practical balanced way. Because here's the |
| 1:56.8 | thing. I've had patients who became so obsessed with avoiding seed oils that they stopped going out |
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