What Organs Use Calories? An In-Depth Look at Your Body's Energy Burners
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6 min read
Remarkably, despite making up only 2% of total body weight, the brain consumes about 20% of the body's energy. Every organ and tissue in the human body requires energy to function, meaning all internal organs use calories to fuel their vital processes, even when at rest. This constant energy usage is known as your basal metabolic rate (BMR), the minimum number of calories needed to sustain basic, life-sustaining functions.
