Question

Where does energy in food originally come from?

Answer 1

the answer is: sun. the real origin food comes from.

not sure. but from100%,80%

Answer 2

Food energy is chemical energy that animals (including humans) derive from food through the process of cellular respiration. Cellular respiration may either involve the chemical reaction of food molecules with molecular oxygen or the process of reorganizing the food molecules without additional oxygen.

Organisms derive food energy from carbohydrates, fats and proteins as well as from organic acids, polyols, and ethanol present in the diet.