Health & Medicinearticle2026-09-10

Prepregnancy Diet Quality Index and Adverse Pregnancy Outcomes

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Abstract

This cohort study of US births examines the association of preconception diet quality with adverse pregnancy outcomes.

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View paper (DOI)Open access versionOpenAlexJAMA Network OpenPublished 2026-09-10

Authors: Ummayhany Bharmal, George Saade, Philip Greenland, Brenda J. Smith, Andrea C. Kozai, Stephanie A. Fisher, Lauren Theilen, William Grobman, C. Noel Bairey Merz, Uma Reddy, Tetsuya Kawakita, MS

Institutions: University of Pittsburgh, Northwestern University, Columbia University, Brown University, Cedars-Sinai Medical Center, Indiana University School of Medicine, Indiana University – Purdue University Indianapolis, University of Utah, Rhode Island Hospital, Sir Sayajirao General Hospital Medical College, Cedars-Sinai Smidt Heart Institute