It is easy to lose sight of portion size and unwittingly consume excessive food and calories  even if the fat content is low or even zero! This guide contains a growing series of popular foods showing portion sizes with their calorie, fat and carbohydrate content. Cheese, Cheddar, Sliced.
1 It takes more than 10 gallons of water to produce one slice of wheat bread. 2  If you eat the bread with a slice of cheese then you add another 13 gallons. 3  Using a low-flow faucet can save you 3.5 gallons per minute. If you eat the bread with a slice of cheese then you add another 13 gallons. 2  Using a low-flow faucet can save you 3.5 gallons per minute. 3  Using a low-flow toilet can save nearly 5 gallons per flush.
If you are weighing your food in ounces, use the âFactor for Ounces.â If you are weighing your food in grams, use the âFactor for Gramsâ. Sample Calculation To calculate the grams of carbohydrate for a slice of bread: 1. Weigh your bread (in ounces) using a food scale â the weight is 2 ounces.2.he bread FACTOR is 15 grams of carbohydrate per one ounce. 3. Multiply the weight of your slice of bread times the FACTOR. 2 ounces of Bread x 15 grams of carbohydrate per ounce equals 30 grams of carbohydrate.