Brian To calculate this divide a food or drinks calories from fat by total calories this information is on the products food label and then multiply by 100. A calorie or thermochemical calorie is a unit of energy in the International System of Units SI. D W with Protein.
Ethanol drinking alcohol 7 kcal per gram.
From this information you can calculate the percentage of kcalories each of the energy nutrients contributes to the total. Multiply the number fat grams by 9. General Guide to DV 5 DV or less of a nutrient per serving. To get the number of calories from fat using the fat grams you will just need to multiply the total fat grams per serving by 9.