DHA content of mothers’ milk was measured in many different countries.

milk DHA eat3DHA contents of mothers’ milk was related to the foods that nursing mothers ate. Higher amounts in milk related to the prevalence of postpartum depression. Prevalence rates in Australia , Sweden , United Kingdom and United States were derived by meta-analysis of published data. All other countries are represented by a single study, DHA content of mother’s milk is expressed as the weight percent of docosahexaenoic acid of mature milk. This Figure is from a paper by J.R. Hibbeln published in the  Journal of Affective Disorders 69 (2002) 15-29.