Question

Metabolizable energy

03 Feb 2026
Answer :
Word Count : 262
Metabolizable energy is the portion of energy in food that is available for use by the body after subtracting the energy lost in feces, urine, and gases. It represents the actual energy that the body can utilize for physiological functions such as growth, maintenance, physical activity, and metabolism. It is an important concept in nutritional biochemistry because it gives a more accurate measure of the energy value of food than gross energy. Gross energy is the total energy present in food, which is measured by complete combustion in a bomb calorimeter. However, not all this energy is available to the body because some nutrients are
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