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.
Daily Grams of Fat. Based on a 2,000 calorie diet, your recommended fat intake is around 400 to 700 calories per day, which is 20 to 35 percent. Since each gram of fat has 9 calories, your ideal amount ranges between 45 to 78 grams of fat per day. Your recommended saturated fat intake is 22 grams or less per day.