In a 7-week , double-blinded , randomized , controlled , parallel-group study , healthy subjects received 8 g day ( -1 ) fish oil ( 1.6 g day ( -1 ) eicosapentaenoic acid + docosahexaenoic acid ) ( n = 17 ) or 8 g day ( -1 ) high oleic sunflower oil ( n = 19 ) .