Maternal dietary intake among alcohol-exposed pregnancies is linked to early infant physical outcomes in South Africa

Maternal dietary intake is likely a contributing factor to fetal alcohol spectrum disorders (FASD). Two, 24-hour dietary recalls were completed by pregnant women (n = 196) in South African communities with high rates of FASD. More than 50% of all women in this study were below the Estimated Average Requirement (EAR) for pregnancy for vitamins A, C, D, E, riboflavin, vitamin B6, folate, calcium, magnesium, iron, and zinc. More than 90% of mothers were below the Recommended Dietary Allowance (RDA) or Adequate Intake (AI) for pregnancy on vitamin A, K, D, E, choline, calcium, magnesium, zinc, and potassium. More than 80% were below RDA/AI for pantothenic acid, vitamin B6, and folate. Women who consumed alcohol reported significantly lower intake of calcium and three saturated fatty acids and significantly higher intake of two monounsaturated fatty acids. On average, infants were < 40th centile on length, weight, and head circumference at 6 weeks old, regardless of alcohol exposure. Twenty nutrients correlated with at least one measure of 1st trimester drinking (drinks per drinking day, number of drinking days per week, and/or total drinks per week). Nutrients included four saturated fatty acids, eight amino acids, calcium, B-complex vitamins, choline, and betaine. Calcium correlated with all three drinking measures. Further analyses revealed seven nutrients were associated with infant length, weight, and/or head circumference among unexposed infants, and 12 nutrients were associated among infants with prenatal alcohol exposure. Inadequate maternal dietary intake, with alcohol exposure, may increase risk for poor infant growth and likelihood of FASD in this population.

Automated summary

Maternal dietary intake is associated with fetal alcohol spectrum disorders (FASD). A study conducted in South African communities with high rates of FASD found that more than 50% of pregnant women had inadequate intake of several vitamins and minerals, particularly in alcohol-consuming women. Inadequate maternal dietary intake may increase the risk of poor infant growth and likelihood of FASD.