DarkHorse Podcast Seeds of Doubt: Nina Teicholz, PhD on DarkHorse
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Oct 12, 2025 Nina Teicholz, a journalist and nutrition researcher with a PhD in nutrition science, unpacks the controversy surrounding seed oils and dietary guidelines. She shares her journey into the world of trans fats and the industrialization of seed oils, revealing how corporate interests shaped health recommendations. Teicholz discusses harmful oxidation in seed oils, the suppression of research supporting low-carb diets, and the challenges of nutrition science due to industry funding. Her insights encourage a reevaluation of our dietary choices for better health.
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Origins Of The Seed-Oil Narrative
- Nina Teicholz uncovered that mainstream dietary advice favoring seed oils over animal fats was driven by industry and weak science.
- Her book The Big Fat Surprise challenged decades of nutrition orthodoxy and sparked wider reevaluation.
Investigative Reporting Into Trans Fats
- Nina described investigating trans fats and visiting industry oil chemists during her Gourmet Magazine reporting.
- She learned industry tactics to attack and silence scientists who raised concerns about seed oils.
What Hydrogenation Does Chemically
- Hydrogenation adds hydrogen to double bonds, turning liquid seed oils into solids by removing kinks in carbon chains.
- Saturated fats are literally saturated with hydrogen, which changes physical properties and stability.
