A NUTRITIONAL COMPOSITION FOR INFANTS COMPRISES A PROTEIN SOURCE, A LIPID SOURCE AND A CARBOHYDRATE SOURCE WHEREIN THE LIPID SOURCE INCLUDES AT LEAST 16 WT% LINOLEIC ACID AND AT LEAST 2 WT% a-LINOLENIC ACID EXPRESSED AS A PERCENTAGE OF TOTAL FATTY ACID CONTENT IN EACH CASE AND IN AMOUNTS SUCH THAT THE RATIO OF LINOLEIC ACID: a-LINOLENIC ACID IS IN THE RANGE FROM 1 TO 10.