Protein & Nutrition Blog – Marmels
Protein & Nutrition Blog – Marmels
Percent of Calories From Protein: What It Tells You and Doesn't
by Mo Mandegar, PhD
on Oct 28 2026
Percent of calories from protein is a real and useful metric, but it is easy to misread. Ten percent of a 290 calorie food is about 7g of protein, not 29g, and the 10 to 35% range describes a whole day, not a single food. Here is the arithmetic, a like-for-like check on everyday foods, and the limits of the number.
