In laboratory conditions BMR is measured by the oxygen uptake under strict conditions, while in most cases it is estimated based on known predictors: age, height, weight, and gender. For your convenience our BMR calculator first shows you the BMR in Calories per day (kCal / day) so you can read it as the minimum energy your daily diet needs to provide.Ī definition found in the medical literature is that the basal metabolic rate is the minimum energy requirement to stay alive and awake.
The unit for BMR in scientific / medical literature is usually kilocalories per square meter of body surface area (BSA) per hour: kCal
BMR is used for calculating energy and nutritional needs for athletes and ordinary people alike, diets, threatment for some health conditions, weight loss diets, etc. Up to 85% of a person's daily energy expenditure goes towards sustaining the basic metabolic functions. Basal here is used in the sense of "minimal", so if something is basal it is of, relating to, or being essential for maintaining the fundamental vital activities of an organism, for example a basal diet is the absolute minimum nutrients your body needs to survive.
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