Metabolized Energy (me)There is one other area that needs to be measured for energy content, and that is the urine. Metabolized Energy calculates the amount of energy lost in both the feces and the urine. Metabolized Energy is the most accurate figure regarding the amount of energy which is used by the dog. Metabolized energy equals gross food energy minus gross fecal and urinary energy.
Although every dog is different, and can absorb nutrients at different levels, it is always best to start off with a higher Metabolized Energy in the food you feed. The higher the Metabolized Energy the better the food.
Metabolized Energy is measured in cal or Kcal per cup.