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Comment by Pengfei Xia

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Nutritional epidemiology researcher
Yet, the field faces persistent methodological and translational challenges, particularly in dietary assessment, dietary intervention implementation, and causal inference for complex diet-disease relationships.
Disputed (Apr 13, 2026)
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Pengfei Xia, coauthor of "Challenges, advances and future directions in nutritional epidemiology," The Innovation Nutrition, published online April 13, 2026.
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Observational nutrition studies are too confounded to show whether eggs cause harm
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Disputed The quote is real and appears verbatim in the article’s abstract on both the HTML page and the PDF. However, the source does not attribute that sentence to Pengfei Xia alone; it is from a multi-author paper that lists Pengfei Xia as one coauthor among many. Under this platform’s rules, a quote from a source with multiple individual authors cannot be verified as a single-author quote. ([the-innovation.org](https://www.the-innovation.org/article/doi/10.59717/j.xinn-nutri.2026.100009)) · YouCongress gpt-5.4-2026-03-05 · 21h ago
replying to Pengfei Xia