About this trial
The fetal brain requires DHA, choline, lutein, and zeaxanthin (L/Z) for development, dependent on maternal intake during pregnancy. However, many pregnant women do not meet daily requirements through diet or prenatal vitamins. Egg yolks are rich in choline, and women who consume eggs daily are more likely to meet the adequate intake of 450 mg/day. A recent study by Christifano et al. found that maternal egg and neuroprotective nutrient intake predicted neurodevelopment at 32 and 36 weeks of gestation. This study aims to determine if fetal neurodevelopment is enhanced among women who consume a prenatal diet emphasizing egg consumption (EGG) versus a healthy prenatal diet education control group (HPD). Women between 12-20 weeks' gestation will be randomized into EGG and HPD groups. The EGG group will receive education on the importance of prenatal choline and egg consumption and be encouraged to consume 10-14 eggs per week. The HPD group will receive education on a healthy prenatal diet. Both groups will be encouraged to take a DHA supplement, and dietary intake of choline, L/Z, and DHA will be collected. Fetal heart rate variability will be measured at 36 weeks gestation and infant EEGs will be conducted postnatally to examine brain function. Increasing prenatal egg consumption is both economical and feasible to boost prenatal choline intake, promote offspring neurodevelopment, and guide prenatal dietary recommendations.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Pregnant females ≥18 years of age
12 to 20-weeks' gestation at enrollment
No serious illnesses likely to confound study outcomes
Consuming 3 eggs/week or less at enrollment and willing to increase consumption during the study
Disqualifiers
Less than 18 years at enrollment
Gestational age at enrollment <12 or >20 weeks
Any serious illness likely to confound study outcomes
Consuming more than 3 eggs per week at enrollment
Trial design
Parallel
Treatments tested in this trial
Egg Supplementation
Dietary supplementEncouraged to consume 10-14 eggs per week.
Healthy Prenatal Diet
Dietary supplementEducated on standard healthy prenatal diet and encouraged to follow recommendations.
Treatment groups
Trial outcomes
Primary outcomes
Fetal neurodevelopment as indexed by heart rate variability (HRV)
Group comparisons will be made between time-domain metrics of fetal HRV (SDNN, RMSSD) between those in EEG vs. HPD groups using a dedicated fetal heart rate monitor.
Secondary outcomes
Fetal neurodevelopment as indexed by heart rate variability (HRV)
Relationship between intake of maternal neuroprotective nutrients, including choline, docosahexaenoic acid (DHA), lutein and zeaxanthin (L/Z) as measured by the Diet History Questionnaire-III and offspring neurodevelopment at 36 weeks gestation (fetal HRV).
Infant neurodevelopment as indexed by event-related potentials (ERP)
Brain neurophysiology will be measured at 1 month of age. Assessments of band-limited spectral power during resting-state will be assessed. Event-related potentials (ERP) to auditory stimuli will be recorded. Group comparisons will be made between measures of resting state spectral power and auditory ERP components.
Infant neurodevelopment as indexed by event-related potentials (ERP)
Relationship between intake of maternal neuroprotective nutrients, including choline, docosahexaenoic acid (DHA), lutein and zeaxanthin (L/Z) as measured by the Diet History Questionnaire-III and offspring neurodevelopment at 1 month postnatal age (infant ERP).
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