Its content in breast milk is variable26 and depends on DHA sources in the maternal
diet, 6,27 including fish; infant DHA status in turn depends on the DHA content of ingested breast milk.27 Randomized trials of DHA supplementation during lactation have found beneficial effects of DHA on early
motor skills28 and sustained attention29 but not visual
motor function or
general cognition.28, 30 Our observation may be explained by DHA or nutrients in fish other than DHA.