Quote:
Originally Posted by JimC  The minimum is not the amount you should consume, it is the minimum amount to be safe, do not consume less than that. |
I doubt that BMR
is a safe minimum when the maintenance requirement (ie. the maximum) is significantly higher. BMR is just enough calories
to maintain a bedridden body that isn't even eating.
Do a couple of days serious exercise on that level of food intake and you will crash, driving your body into energy conservation mode. ie. You'll feel like crap and start
retaining weight as your body goes into starvation mode.
Quote:
Originally Posted by JimC To say that I should just multiply it by a percentage is rather inaccurate. There are a lot of other factors like height, weight, age, sex, body type etc... |
It's a percentage
of the maximum, and the maximum already factors in height, weight, age and sex. (Body type is very hard to quantify. I note that your calculator doesn't include it, presumably for that reason).
I'm not questioning your math. I think you've calculated both the BMR and the maximum (maintenance calories) just fine.
What I'm questioning is your assumption that BMR is a safe minimum level of calories even when maintenance calories are much higher. Can you cite anywhere that indicates that this is the case?
Quote:
Originally Posted by JimC I highly doubt you do 8 hours of continuous light exercise. The initial calculation for this is by minute so it does not include taking breaks. |
Call it 2 hours light exercise, 1 hour heavy exercise (which is a reasonable weight-loss routine) then. You get the same problem - attempting to function on thousands of calories less than maintenance.