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.
No more than seven percent of your total daily calories should come from saturated fats, according to the American Heart Association. If you consume approximately 2,000 calories per day, that means your saturated fat limit is 16 grams or 140 calories from saturated fat.If you eat less or more than 2,000 calories, your saturated fat limit is respectively lower and higher than these values.f you consume approximately 2,000 calories per day, that means your saturated fat limit is 16 grams or 140 calories from saturated fat.