Basal metabolic rate (BMR) is the average daily amount of energy (calories) that is
used by a body when it is at rest. Heredity, height, body composition, and age determine
a person's basal metabolic rate. It is also known as basal energy expenditure (BEE).
The energy in a person's BMR is used to keep body temperature normal and to power
the heartbeat, breathing, and other organ functions. Your BMR uses up about two-thirds
of your daily calories.
The best measure of BMR is taken when you are not digesting any food or doing any
activity, usually right after waking up for the day.
Another option is to measure resting metabolic rate (RMR), also known as resting energy
expenditure (REE). This is very similar to BMR, but the test can be done with fewer
Medical Review:Adam Husney, MD - Family Medicine & E. Gregory Thompson, MD - Internal Medicine & Ali Tavakkoli, FACS, FRCS, MD - General Surgery, Bariatric Surgery
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