After a four-week run-in on a high saturated fat ( SFA ) diet ( 1540 kcal/day , 17 % SFA ) , the free-living subjects were randomly assigned to either a high - ( 75 GI units ) or low - ( 43 GI units ) GI diet ( 1440 kcal/day , 60 % carbohydrate , 5 % SFA ) for eight weeks .
