Apparent courses of red blood cell (RBC) arachidonic acid (AA, panel A) and docosahexaenoic acid (DHA, panel B) from the first trimester of pregnancy up to 3 months postpartum for Maasai (low fish), Pare (intermediate fish), and Sengerema (high fish) women and infants. Data represent means ± 2SEM in g/100 g (g%) fatty acids. They are derived from different maternal subgroups at the 1st, 2nd, and 3rd trimester and different mother–infant pairs at delivery and 3 months postpartum. Maternal and infant data are represented by closed and open symbols, respectively. PP, postpartum + significantly (sign) different from Maasai, pilcrow sign different from Pare, yen sign different from Sengerema, closed circle sign different from delivery, infinity sign different from mother