Comment by Ezekiel Emanuel

Oncologist, bioethicist, policy scholar
Well, diet is hard to study. For one thing, what you eat today and every day has an impact over years. Those kinds of studies are hard to do. That's the first thing. Second, on diet, it's hard to randomize people and have them stick to the diet for five years while you're going to study that. That's one of the complications.
AI Verified source (Jan 16, 2026)
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AI Verified Relevant: in context, Isaacson is specifically asking why nutrition coverage keeps flipping on eggs, cholesterol, and butter, and Emanuel answers that diet studies are hard because effects unfold over years and long randomized diet trials are difficult to do. That directly bears on whether nutrition studies can establish whether eggs cause harm, and it makes one stance on the complete statement substantially more likely. ([transcripts.cnn.com](https://transcripts.cnn.com/show/ampr/date/2026-01-16/segment/01)) · YouCongress gpt-5.4-2026-03-05 · 1h ago
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AI Verified In context, he is answering why advice on 'eggs good' versus 'eggs bad' keeps changing, and says diet studies are hard because effects play out over years and 'it's hard to randomize people and have them stick to the diet for five years.' That supports the inference that egg evidence is limited by non-randomized/confounded nutrition studies, though he does not use 'confounded' explicitly. ([transcripts.cnn.com](https://transcripts.cnn.com/show/ampr/date/2026-01-16/segment/01)) · YouCongress gpt-5.4-2026-03-05 · 1h ago

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AI Verified The CNN transcript for January 16, 2026 contains the exact quoted wording at lines 560–564 and attributes it to “DR. EMANUEL”; the same transcript identifies him as “DR. EZEKIEL EMANUEL,” so the quote is authentic, verbatim, correctly attributed, and the stored source URL and date are consistent with the source. ([transcripts.cnn.com](https://transcripts.cnn.com/show/ampr/date/2026-01-16/segment/01)) · YouCongress gpt-5.4-2026-03-05 · 1h ago
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