Everybody knows that energy is good for you and calories are bad for you. What newagers, health nuts and alties seem to be completely ignorant of is that both words originate in physics and that they refer to the same thing.
Energy “is a scalar physical quantity that describes the amount of work that can be performed by a force”. It can be measured in various units, in the context of food usually kilocalories. A Snickers bar contains about 150 kilocalories, which is equal to the energy content of about 20 ml of gasoline.
Both energy content estimates of course refer to the amount of chemical energy you get out of the stuff when using it to fuel the pertinent piece of machinery, viz a car engine for gasoline and a human body for Snickers bars. The atomic energy content is way, way greater, but we haven’t got the technology to run nuclear power plants on chocolate just yet.
Oh, and you know when newagers speak of “spiritual energy”? It’s a meaningless phrase.