Question 11 pts14What is the unit of energy used in nutrition science to express the amount of…

3. How do scientists measure the energy in food?
Scientists measure food energy directly with a bomb calorimeter, which burns a sample to record heat released. Nutrition often uses metabolizable energy estimated by Atwater factors, assigning average kcal per gram for macronutrients and adjusting for digestibility and losses in feces and urine, yielding practical values for dietary use.