My Fitness Pal & BMR I just discovered a major flaw in the way MFP calculates BMR. The calculator on the site only gives you your "coma calories" burn, and clearly says that daily activity is not counted. It then says that it's Mifflin-St joer calculation is more accurate than Harris Benedict. BUT the purpose of Harris Benedict is to calculate your activity calories. Somebody messed up.
MFP gives me 1765 BMR. I multiplied by 1.375 for less active days.
Min Daily Calorie need 2427
I choose to eat 1850 cals about 20% below. On heavy work out days up to 40% below
IMO everyone should at least eat enough to hit their base BMR without activity, though others I'm sure will disagree.
Harris Benedict tells us to multiply the base BMR by the following:
To determine your total daily calorie needs, multiply your BMR by the appropriate activity factor, as follows:
If you are sedentary (little or no exercise) : Calorie-Calculation = BMR x 1.2
If you are lightly active (light exercise/sports 1-3 days/week) : Calorie-Calculation = BMR x 1.375
If you are moderatetely active (moderate exercise/sports 3-5 days/week) : Calorie-Calculation = BMR x 1.55
If you are very active (hard exercise/sports 6-7 days a week) : Calorie-Calculation = BMR x 1.725
If you are extra active (very hard exercise/sports & physical job or 2x training) : Calorie-Calculation = BMR x 1.9