Final answer:
To calculate the number of calories from total fat, saturated fat, and other types of fat on a nutrition label, multiply the amount of each type of fat by nine. Subtract the calories from saturated fat from the total fat calories to find the calories from other types of fat.
Step-by-step explanation:
Fat is listed as a total fat in grams on the nutrition label, which includes saturated fat and other types of fat. Fat contains nine calories per gram. To calculate the number of calories from total fat, saturated fat, and other types of fat, you need to multiply the amount of each type of fat listed on the label by nine.
For example, if the label says there are 10 grams of total fat, you would calculate: 10 grams x 9 calories/gram = 90 calories from total fat. If the label also specifies that there are 3 grams of saturated fat, you would calculate: 3 grams x 9 calories/gram = 27 calories from saturated fat. To calculate the calories from other types of fat, subtract the calories from saturated fat from the total fat calories: 90 calories - 27 calories = 63 calories from other types of fat.