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.
Your dietary fat consumption should not exceed 35 percent of your total calorie intake, suggests the Institute of Medicine. This means the maximum amount of fat you should consume each day is 62 grams for a 1,600-calorie diet, 78 grams when eating 2,000 calories a day and 97 grams of fat daily for a 2,500-calorie diet.