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 Intake Calculator. 1  Take less than 10% of calories from saturated fats. Less than 7% to further reduce the risk to heart disease. 2  Replace solid fats with unsaturated fat if possible. 3  Take as little trans fat as possible. 4  Take less than 300 mg of dietary cholesterol per day.