How many calories does it take maintain basic organ functions?
Asked by s_f_haag on Jul 30, 2009
By basic organ functions, I mean heart beating, digestion, breathing, kidneys, brain function, etc., not including exercise. What's the bare minimun of calories needed to keep the body alive and functioning? I'm not going to do this, of course. Just curious to know.
The calories it takes to maintain your body at rest is called your Basal Metabolic Rate (BMR) (or Resting Energy Expenditure (REE) - they are the same). Predictive energy equations are routinely used to determine your BMR. Calorie Count uses the Mifflin-St Jeor equation:
10 x wt (kg) + 6.25 x Ht (cm) - 5 x Age (yrs) + 5 = BMR (male)
10 x wt (kg) + 6.25 x Ht (cm) - 5 x Age (yrs) -161 = BMR (female)
Based on the starting weight you supplied when you first joined Calorie Count, your BMR is 1777. (To convert pounds to kg, divide by 2.2; to convert inches to cm, multiply by 2.54.) Read more about estimating your calorie requirements at the Calorie Count blogs.
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