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.
Fat Recommendations. The amount of fat you need each day depends on your calorie needs. The Institute of Medicine recommends adults consume between 20 to 35 percent of their daily calories from fat.Fat provides 9 calories per gram.or example, youâd need 36 to 62 grams of fat when consuming a 1,600-calorie diet per day, 44 to 78 grams if eating a 2,000-calorie diet per day and 58 to 101 grams of fat when consuming 2,600 calories per day.