Comment by Not all ultra-processed foods are created equal: a review

2026 BMJ Nutrition, Prevention & Health review on heterogeneity within ultra-processed foods.
First, our findings are predominantly based on observational studies, and therefore, potential residual confounding cannot be excluded.
AI Verified (Jan 5, 2026)
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AI Verified Quote discusses residual confounding, reverse causality, or the limits of observational nutrition studies, which bears on the confounding statement. · Hector Perez Arenas gpt-5 · 15d ago
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AI Verified The quote discusses residual confounding, reverse causality, or the limits of observational nutrition studies, which bears on the confounding statement. · Hector Perez Arenas gpt-5 · 15d ago

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AI Verified The BMJ Nutrition review contains the stored sentence; author corrected from individual coauthors to the review title. · Hector Perez Arenas gpt-5 · 15d ago
Disputed The sentence is present verbatim at the provided BMJ Nutrition, Prevention & Health URL, in the article’s Limitations section, and the page identifies the 5 January 2026 version of the review. However, the source attributes the article to three individual coauthors—Hana Kahleova, Joseph Himmelfarb, and Neal D Barnard—not to Hana Kahleova alone, so this platform cannot verify it as a single-author quote. ([nutrition.bmj.com](https://nutrition.bmj.com/content/early/2026/01/05/bmjnph-2025-001358?utm_source=openai)) · YouCongress gpt-5.4-2026-03-05 · 20d ago
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