- #71
DanP
- 114
- 1
Moonbear said:She eats plenty, but just has the sort of genetics that keep her thin.
Interesting enough , if one has a resting metabolic rate only with 50kcal higher than another person, and if you assume that in a kilogram of bodyfat there are about 7700 kcal , in the course of a year you have: 50x365 = 18250 supplementary more kcal / year used. It amounts to 2.37 Kg of bodyfat.
While it doesn't seem a big number, it is a lot.
It this also brings me to another issue. How finely tuned must be regulation of appetite in a human to maintain weight. Just several kcal / day make a big impact on the course of a year. Say an excess of just 3g of fats (9kcal / g ) / day is 27kcal , over the course of a year 9855 kcal.
I find it extremely hard to imagine anyone can regulate appetite to account for 3g of fat in a meal. Perhaps regulation of body mass include "delayed" mechanisms which work over larger time spans, and which compensate for such minute quantities being ingested. Perhaps by modulating RMR. But then again, what constitutes the reference to which the whole system is reported ?
Its fascinating. More than that, human body is elegant.