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.
If you are a woman, you have a different requirement for fat grams than a man. A woman of normal weight should take in no more than 65g of fat per day, while a man probably needs no more than 88g of fat a day to maintain weight. That's based upon a 2,000 calorie diet.