ArticleFood science & nutrition2026
Iron Adequacy Modifies the Association Between Prenatal Diet Quality and Pregnancy-Related Anxiety in Pregnant Women: A Cross-Sectional Study.
Article in Food science & nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Diet quality may influence maternal psychological well-being through nutrients involved in neurotransmitter synthesis and brain energy metabolism. Iron may be particularly relevant because its requirements increase during pregnancy; however, whether dietary iron adequacy modifies the association between prenatal diet quality and pregnancy-related anxiety remains unclear. This study examined the association between prenatal diet quality and pregnancy-related anxiety and whether dietary iron adequacy moderated this relationship. This cross-sectional study included 293 pregnant women in Istanbul, Türkiye (mean age: 29.60 ± 4.29 years). Prenatal diet quality was assessed using the Prenatal Diet Quality Index (PDQI), anxiety using the Pregnancy-Related Anxiety Scale (PRAS), and dietary iron adequacy as the percentage of the Recommended Dietary Allowance met through dietary intake. Moderation analysis was performed using multiple linear regression adjusted for sociodemographic and obstetric covariates. The mean PRAS score was 70.44 ± 16.07 on a scale of 33-132, and the mean PDQI score was 42.76 ± 9.73 out of 80. As no established cut-off values were available, scores were not classified as high or low. PDQI and dietary iron adequacy were not independently associated with anxiety; however, their interaction was significant (
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