Tag: Calories in bone

Many people are surprised to learn that the hard, mineral-rich part of a bone contains virtually no metabolizable calories for humans, as we cannot digest it effectively. The calories commonly associated with bones actually come from the fatty marrow and connective tissues inside and surrounding them.

According to a 2017 analysis of human nutritional value, the skeleton of an average adult contains over 25,000 calories from fat and protein. This astonishing figure reveals the surprising biological truth behind the question of how many calories does a skeleton have, with the energy primarily stored within its bone marrow.