Why do default to measuring calories per day and not hour or week?

Question

Are you not constantly in a surplus after every meal and deficit prior to meals?

In: 0

Answer 1

FYI:

The amount of calories as printed on food labels are not the amount of calories it contains, but the average amount of calories a human will extract from it by consumption.
As humans differ, the same food might mean a different actual calorie intake for different people, or even if eaten at different times by the same person.

Also: These labels are allowed to deviate +/-20% from reality.

So take the calorie labels as indications and not as absolute truths.