The Proof with Simon Hill

Seed Oils: Dangerous or Misunderstood? Bill Harris, PhD on the Truth About Omega-6 fats

27 snips
Mar 25, 2025
Guest
Bill Harris
Bill Harris, a leading expert on dietary fats and lipid researcher, unpacks the seed oil debate. He clarifies the misconceptions around omega-6 fats, particularly linoleic acid, and its link to inflammation and heart health. Discussion revolves around the historical rise of seed oil consumption, critiques of past research, and the importance of outcome data in guiding health decisions. Harris emphasizes the biochemical complexity of fats and advocates for a balanced understanding, debunking myths and highlighting the potential benefits of seed oils in a healthy diet.
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INSIGHT

Seed Oil Controversy Origins

  • The recent surge in anti-seed oil sentiment is rooted in misinformation, not scientific evidence.
  • This controversy stems from outdated theories about omega-6/3 ratios and the demonization of seed oils.
ANECDOTE

Steak and Shake's Tallow Switch

  • Steak and Shake's switch to beef tallow is primarily a PR move, capitalizing on anti-seed oil sentiment.
  • This decision, while potentially improving taste, may negatively impact long-term health by increasing saturated fat intake.
INSIGHT

Linoleic Acid Sources

  • Linoleic acid, an essential omega-6 fat, is primarily found in seed oils like corn, cottonseed, and soybean oil.
  • High-oleic versions of sunflower and safflower oils have been bred for longer shelf life, reducing their linoleic acid content.
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