Topical Area: Nutritional Epidemiology
Objectives : The Dietary Guidelines for Americans 2015-2020 recommend adults consume 250mg of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA)daily, or the equivalent of 8 ounces of seafood/week. The objective of this study was to assess the prevalence of adequate intake of docosahexaenoic acid using data from the National Health and Nutrition Examination Survey (NHANES) 2015-2016.
Methods : Data were obtained from the 2015-2016 version of the NHANES. Mean intake of DHA was estimated using the National Cancer Institute (NCI) method. Covariates included: sex, age, ethnicity, energy intake, and total fat intake. Cut-off values for adequate intake included: 125 mg, 200mg, and 300mg.
Results : Mean DHA intake for the total sample of adults (n = 5854) was 6.68mg. Of the total sample, 12.3%, 4.0%, and 1.2% met the 125 mg, 200 mg, and 300 mg cut-off values for adequate intake of DHA, respectively.
Conclusions : These results indicate a high prevalence of suboptimal intake of DHA for adults. Only 12.3% adults meet half the recommended intake (125 mg) for EPA and DHA combined through DHA consumption. Less than 1.2% consumed enough DHA (300 mg) to satisfy the overall needs for both EPA and DHA.
Funding Sources : No funding sources to declare.