People calculate nutrition information for a variety of reasons: weight loss, weight gain, weight maintenance. It's a simple skill that can be done with a nutrition label and, in some cases, a calculator.
Things You'll Need
- Nutrition label
How to Calculate Nutrition Information
Know the conversions. One gram of carbohydrates has four calories. One gram of protein has four calories. One gram of fat has nine calories. One gram of alcohol has seven calories.
Use the label. Nutrition labels list the total calories and the calories from fat, but using the conversions allows you to calculate the number of calories from protein and carbohydrates. For example, if an item has 49 grams of carbohydrates, multiply 49 by 4 calories to get 196 calories from carbohydrates.
Find the percentage of calories from a nutrient. To do this, divide the calories from a nutrient (fat, for instance) by the total calories and multiply by 100. For example, if your favorite snack has 200 calories, with 50 calories from fat, you divide 50 by 200 to get .25; multiply this by 100 to get 25. That snack has 25 percent calories from fat.
How to Calculate Calories Per Serving
A calorie is actually calculated by the amount of energy that is required to raise the temperature of 1 gram of water...
How to Calculate the TPN
Total Parenteral Nutrition (TPN) is normally customized based on the patient's needs. TPN nutritional formulas contain different percentages of carbohydrates, fat and...
How to Create a Nutrition Facts Chart
Nutrition facts are essential for health, diet planning and weight loss. Generally, people pay closest attention to calories, fat and carbohydrates. Diabetics...
How to Calculate Weekly Nutrition From Labels
Labels on foods that list "standard servings" cannot tell you how much food you actually eat or what nutrients you get from...
How to Calculate Nutritional Values
Food labels give a few nutritional values based on a standard 2,000 calories per day, but you can also calculate the percentages...