Seed Oils, Chronic Inflammation, Heart Health & Marijuana | Ganesh Halade | 266
Audio is streamed directly from the publisher (api.substack.com) as published in their RSS feed. Play Podcasts does not host this file. Rights-holders can request removal through the copyright & takedown page.
Show Notes
Wide release date: December 7, 2025.
Topics Discussed:
* Polyunsaturated fatty acids (PUFAs): Omega-6 from seed oils like safflower and corn can convert to pro-inflammatory molecules, while omega-3s produce resolving ones; imbalance biases toward chronic inflammation.
* Inflammation regulation: Acute inflammation aids healing but requires active “on” and “off” signals from lipid mediators; chronic inflammation arises from excess omega-6, delaying resolution.
* Heart health & diet: High omega-6 diets worsen post-heart attack outcomes in mice by elevating pro-inflammatory lipids.
* Evolution & historical context: PUFAs are essential but naturally balanced in pre-industrial diets; modern processing skews ratios, contributing to diseases, as shown in early rat experiments needing minimal fats for survival.
* Aging & lifestyle factors: Excess omega-6 exacerbates inflammation in older mice; sleep, exercise, and balanced fats are crucial for metabolic health and enzyme function in processing lipids.
* Cannabis & omega-6 interaction: In mice on high omega-6 diets, CBD-rich cannabis smoke reaches the heart quickly, suppresses immune response, and weakens cardiac strain, unlike in balanced-diet controls.
* Genetic models: FAT-1 mice converting omega-6 to omega-3 show better healing and neuroprotection; FAT-2 mice doing the opposite exhibit liver fibrosis and metabolic issues, highlighting omega-6 excess harms.
Practical Takeaways:
* Balance omega-6 and omega-3 intake by reducing seed oils in processed foods and increasing sources like fish or algae to support inflammation resolution and heart health.
* Monitor and adjust fat intake with age, as older individuals are more sensitive to omega-6 excess leading to immune dysregulation.
* Avoid combining high omega-6 diets with smoking, as it may impair immune and cardiac responses based on animal data.
About the guest: Ganesh Halade, PhD is a cardiovascular scientist and associate professor at the University of South Florida Morsani College of Medicine.
Reference Paper:
* Paper: Cannabis cigarette smoking disrupts mice multi-organ bioactive lipid metabolism and inflammation-resolution signaling in an obesogenic setting
Related Episode:
* M&M 200: Seed Oils, Inflammation, Colon Cancer & Chronic Disease | Tim Yeatman & Ganesh Halade
*Not medical advice.
* Full audio version: [Apple] [Spotify] [Elsewhere]
* Full video version: [YouTube]
* Support M&M if you find value in this content.
* Episode transcript below.
Episode Chapters:00:03:38 Guest Introduction & Background
00:04:42 Polyunsaturated Fatty Acids Overview
00:08:31 Acute vs Chronic Inflammation
00:12:01 Inflammation Turn-On & Turn-Off Signals
00:17:59 Omega-6 & Omega-3 Imbalance in Modern Diet
00:23:39 Essential Fatty Acids & Natural Balance
00:28:09 Seed Oils & Heart Health Controversy
00:37:27 High Omega-6 Effects on Heart Health
00:45:32 Aging & Omega-6 Sensitivity
00:53:55 Healing Faster with Balanced Ratio
00:59:36 Cannabis Smoking & High Omega-6 Diet
01:11:19 Immune Dysregulation from Cannabis & Omega-6
01:15:00 Ongoing Heart Failure Research
01:21:26 FAT-1 & FAT-2 Mice Insights
01:28:10 Lifestyle Medicine & Final Thoughts
Full AI-generated transcript below. Beware of typos & mistranslations!