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Is Industrial Processing the Real Problem With Seed Oils? | Layne Norton, Ph.D.

Peter Attia MD, 9 min, 20.4K views, Jan 23, 2026

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Sign up to receive Peter's email newsletter: https://bit.ly/4c602k2 Watch the full episode: https://youtu.be/iB49uq-t1UM Become a member to receive exclusive content: https://bit.ly/4pEvzy3 This clip is from episode #380 ‒ The seed oil debate: are they uniquely harmful relative to other dietary fats? | Layne Norton, Ph.D. In this clip, they discuss: - Seed Oils Require Industrial Processing – Producing seed oils involves heating, refining, and large-scale chemical or mechanical extraction steps - Processing Raises Concerns About Purity – The concern is that heating, reheating, and refinement could alter linoleic acid compared to a pure laboratory form - Hexane Is Used for Efficient Extraction – Hexane is a non-polar solvent that effectively dissolves oils and can later be removed due to its low boiling point - Hexane Is Removed During Processing – Steam is used to evaporate hexane from the oil, with temperatures far below those required for significant oxidation - Impractical Exposure Threshold – Calculations suggest consuming over 11,000 kg of oil at once would be required to reach even mild effects from hexane -------- About: The Peter Attia Drive is a deep-dive podcast focusing on maximizing longevity, and all that goes into that from physical to cognitive to emotional health. With over 90 million episodes downloaded, it features topics including exercise, nutritional biochemistry, cardiovascular disease, Alzheimer’s disease, cancer, mental health, and much more. Peter Attia is the founder of Early Medical, a medical practice that applies the principles of Medicine 3.0 to patients with the goal of lengthening their lifespan and simultaneously improving their healthspan. Learn more: https://peterattiamd.com Connect with Peter on: Facebook: http://bit.ly/PeterAttiaMDFB Twitter: http://bit.ly/PeterAttiaMDTW Instagram: http://bit.ly/PeterAttiaMDIG Subscribe to The Drive: Apple Podcast: http://bit.ly/TheDriveApplePodcasts Overcast: http://bit.ly/TheDriveOvercast Spotify: http://bit.ly/TheDriveSpotify Google Podcasts: http://bit.ly/TheDriveGoogle Disclaimer: This podcast is for general informational purposes only and does not constitute the practice of medicine, nursing, or other professional healthcare services, including the giving of medical advice. No doctor-patient relationship is formed. The use of this information and the materials linked to this podcast is at the user's own risk. The content on this podcast is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Users should not disregard or delay in obtaining medical advice for any medical condition they have, and they should seek the assistance of their healthcare professionals for any such conditions. I take conflicts of interest very seriously. For all of my disclosures and the companies I invest in or advise, please visit my website where I keep an up-to-date and active list of such companies. For a full list of our registered and unregistered trademarks, trade names, and service marks, please review our Terms of Use: https://peterattiamd.com/terms-of-use/