On a 1500 kcal diet with 20% protein, how many grams of protein would a person receive?

To determine the amount of protein in grams on a 1500 kcal diet with 20% of the calories coming from protein, you first need to calculate how many calories are derived from protein.

Since 20% of the total calories are from protein, you can calculate the calorie contribution from protein by multiplying the total calorie intake by 0.20:

1500 kcal * 0.20 = 300 kcal coming from protein.

Next, to convert calories into grams of protein, it's important to know that each gram of protein provides 4 kcal. Therefore, you can determine the number of grams of protein by dividing the total calories from protein by the calories per gram:

300 kcal / 4 kcal/g = 75 grams of protein.

Thus, in a 1500 kcal diet with 20% of the calories from protein, a person would receive 75 grams of protein. This calculation effectively demonstrates how to convert percentage-based dietary recommendations into practical gram amounts using the fundamental principles of nutrition.