• Energy is defined as the capacity for doing work.
    • The energy contained within the chemical constituents of food can be either trapped in the body or used to produce heat or allow the body to move.
    • So energy in nutrition is focused on chemical energy and the kinetic energy of motion.
    • The energy value of food is expressed in kilocalories.
    • Kilo calorie can be defined as ‘heat required to raise the temperature of one kg of water through one degree celsius’

Last modified: Thursday, 21 June 2012, 10:11 AM