Quote (carteblanche @ Apr 17 2013 12:44pm)
you've said calories we need are on a daily basis, eg 24 hours. so if we calculated how many calories we need for a 24 hour period and ate that many every 23 hours, we'd slowly gain weight? and if we ate that every 25 hours, we'd slowly lose weight? is it just a coincidence that our digestion system completes in the amount of time it takes the earth to rotate exactly once? or is that evolutionary?
The calories you take in are only FIGURED in a 24 hour period. Your actual body's circadian rhythm is what matters most (closer to 12 hour cycles than 24 - our prehistoric ancestors usually slept when it was dark, and worked when it was light - a 12/12 schedule). Because of our newly modified lifestyles, we work on a 24 hour schedule (16/8 usually). Also, it would be extremely difficult to program a diet that is inconsistent with our schedules and defies the unit of measure that we record our days.
If you were to eat calories over 25 hours, or 30 hours, your NEEDS for those hours change. In a 24 hour period, you body requires approximately X calories which are figured by BMR calculation + exercise + body type and so forth.
You could calculate calories weekly, daily, every 2-3 days, and so forth....however, each day makes it much easier for the person and all involved.