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.
Based on a 2,000-calorie-a-day diet, this amounts to about 44 to 78 grams of total fat a day. Monounsaturated fat. While no specific amount is recommended, the guidelines recommend eating foods rich in this healthy fat while staying within your total fat allowance.