We hypothesized that , compared with a conventional , lower-carbohydrate/HF diet ( 40 % carbohydrate/45 % fat/15 % protein ) , consumption of a higher-complex carbohydrate ( HCC ) / lower-fat ( LF ) Choosing Healthy Options in Carbohydrate Energy ( CHOICE ) diet ( 60/25/15 % ) would result in 24-h glucose area under the curve ( AUC ) profiles within therapeutic targets and lower postprandial lipids .