Enzymes have active sites where they come into contact with particular substrates. The catalytic properties of enzymes are a cyclic process. Once a substrate has come into contact with the active site of an enzyme, it is modified by the enzyme to form the end product.
1 Reducing saturated fat to no more than 5 to 6 percent of total calories. 2  For someone eating 2,000 calories a day thatâs about 11 to 13 grams of saturated fat. 3  Reducing the percent of calories from trans fat.
This means women who eat 2,000 calories daily should limit saturated fat intake to 11 to 16 grams per day. Women eating reduced-calorie diets, providing 1,200 to 1,600 calories, should eat no more than 7 to 12 grams of saturated fat daily.en eating 2,000 calories should limit saturated fat to 11 to 16 grams daily, and men consuming 3,000 calories should eat no more than 17 to 23 grams of saturated fat per day.