Key Takeaway: BMR accounts for 60–70% of total daily calories burned. Calculate your baseline with our BMR Calculator.
The Physiology of Basal Energy Expenditure
Even in complete physical repose, vital organs demand substantial adenosine triphosphate (ATP): the liver (27%), brain (19%), skeletal muscle (18%), and kidneys (10%) represent the majority of resting caloric consumption.
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Scientific References & Clinical Studies
- A new predictive equation for resting energy expenditure in healthy individuals — Am J Clin Nutr. Mifflin MD et al.
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