Pre-pregnancy diet quality and its association with offspring behavioral problems

Area of Science:

• Reproductive Health
• Developmental Psychology
• Nutritional Science

Background:

• Maternal diet influences fetal epigenetic modifications, impacting brain development and behavioral outcomes.
• Pre-pregnancy nutrition's role in offspring behavioral problems remains under-examined.

Purpose of the Study:

• To investigate the association between maternal pre-pregnancy diet quality and offspring behavioral problems.
• To determine if adherence to dietary guidelines before conception predicts child behavioral difficulties.

Main Methods:

• Utilized data from 1554 mother-child dyads from the Australian Longitudinal Study on Women's Health (ALSWH) and Mothers and Their Children's Health Study (MatCH).
• Assessed maternal pre-pregnancy diet quality using the Healthy Eating Index (HEI-2015) score.
• Evaluated offspring behavioral difficulties (total, internalizing, externalizing) using the Strengths and Difficulties Questionnaire (SDQ) and employed multivariable logistic regression.

Main Results:

• Higher pre-pregnancy diet quality (highest vs. lowest tertile) was associated with significantly lower odds of total behavioral difficulties in offspring (AOR = 0.52).
• Improved maternal diet quality before pregnancy correlated with reduced odds of externalizing problems, particularly hyperactivity (AOR = 0.64) and peer problems (AOR = 0.63).

Conclusions:

• Adherence to a high-quality diet before pregnancy is linked to a decreased risk of behavioral disorders in offspring.
• Further prospective research is recommended to validate these findings on maternal nutrition and child behavior.