What calories physically are, and how things like water and celery have none whatsoever?
In: Biology
It’s a myth that celery has no calories.(it’s still a myth that they take more calories to process than you get out of it)
The “calories” for food are measurement of energy.
In food this energy is stored in the bonds in various kinds of molecules.
In our biology, most of the time the body makes these molecules break apart and bond with oxygen.
This breaking apart and re-bonding releases the energy of the bond to do the things you need to live.
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