"The Big Fat Surprise": How Seed (Vegetable) Oils Came to Dominate the Modern Food Supply
- ketogenicfasting
- Jun 19, 2025
- 2 min read
For decades, vegetable oils have been promoted as healthy, heart-friendly alternatives to traditional animal fats. But how did these oils become so dominant in the modern food supply, and what evidence supports the health claims made about them?
Drawing on the research and writings of Nina Teicholz and other critics of conventional dietary guidance, this presentation explores the history of vegetable oils, their rapid rise in consumption, how they are manufactured, and the growing concerns surrounding their long-term effects on human health.
Topics include the role of the American Heart Association, hidden data in nutrition research, oxidation products, mitochondrial health, and the challenges of studying the long-term effects of dietary fats. Whether you agree with the conclusions or not, this presentation offers a different perspective on one of the most widely consumed ingredients in the modern diet.
You can jump to the section of your interest listed below.
0:00 - The Switcheroo
1:52 - History of Vegetable Oils
3:50 - Enter the American Heart Association
5:27 - The Massive Increase in Vegetable Oil Consumption
6:06 - Is Vegetable Oil Bad or Benign?
6:55 - Why do some animals live longer than others?
7:51 - Vegetable Oil stays in your body for years
9:11 - Hidden Data
12:08 - Vegetable Oils are in EVERYTHING
13:07 - Why Vegetable Oils are bad for Health
15:04 - The Toxic Oxidation Products
16:28 - How Vegetable Oils are made
18:33 - Are Vegetable Oils linked to Alzheimer’s?
20:06 - Mitochondria, The Powerhouse of the Cell
24:35 - Most Studies on Vegetable Oils aren’t long enough
26:04 - Why aren’t more people talking about this?
If you found this presentation thought-provoking, continue with Nina Teicholz's presentation below. In it, she expands on many of the same themes, exploring the political, institutional, and industry forces that have shaped nutrition policy and influenced public health messaging for decades. She also examines why certain scientific questions remain controversial despite growing public interest and ongoing debate.
Check out Nina Teicholz's presentation on this topic here.
About Nina Teicholz
Nina Teicholz is an American investigative journalist and author best known for challenging conventional U.S. dietary guidelines and helping revive public debate over low-fat nutrition advice. She is the bestselling author of The Big Fat Surprise, a book that examines the history of nutrition science and the rise of low-fat dietary recommendations. Her work sheds light on nutrition policy, dietary fats, and the questionable scientific evidence underlying many long-standing public health nutrition claims (such as "heart healthy").
Nina Teicholz was among the first contemporary writers to publicly question the health claims surrounding industrial seed oils. Through her publications and public presentations, she has explored the history of how these oils came to dominate the modern food supply. Her work has been featured in The New York Times, The New Yorker, the British Medical Journal, Gourmet, the Los Angeles Times, and numerous other publications.
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