In this study, 1,094 pregnant women in Mexico were randomly assigned to supplement with 400 mg of DHA (docosahexaenoic acid)—an omega-3 fatty acid—or placebo from the eighteenth to twenty-second week of their pregnancy until delivery. Caregivers reported the incidence of illness symptoms in the infants born to these women at one, three, and six months old.
Results showed that at one month, 38% of the infants of women who had received the DHA supplement experienced cold symptoms compared with 45% of the infants of the women in the placebo group, a statistically significant finding. There was also a trend toward a shorter duration of cold symptoms in the DHA infants up to six months old compared with the placebo group.
Beth Imhoff-Kunsch, MPH, PhD, and her colleagues from the Rollins School of Public Health, Emory University, Atlanta, Georgia, comment that prior studies, where adults and children received omega-3 fatty acids, have been inconsistent in showing effects on immune function and inflammation, but they state, “Our findings contribute to the accumulating evidence base for a relationship of prenatal . . . nutrition to the development of fetal and neonatal immune function.” They add that further research is needed to evaluate the role of prenatal omega-3 fatty acids on infant immune function.
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(Pediatrics; published online August 1, 2011; DOI: 10.1542/peds.2010-1386)
Jane Hart, MD, board-certified in internal medicine, serves in a variety of professional roles including consultant, journalist, and educator. Dr. Hart, a Clinical Instructor at Case Medical School in Cleveland, Ohio, writes extensively about health and wellness and a variety of other topics for nationally recognized organizations, websites, and print publications. Sought out for her expertise in the areas of integrative and preventive medicine, she is frequently quoted by national and local media. Dr. Hart is a professional lecturer for healthcare professionals, consumers, and youth and is a regular corporate speaker.