The factors of energy output include:
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Physical Activity: This is a significant contributor to energy output as it involves calories burned during exercise and daily movements.
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Digestion: This process also consumes energy, known as the thermic effect of food (TEF), which refers to the energy required for processing what we eat.
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Metabolism: Metabolism encompasses all biochemical processes that occur within the body, including those that convert food into energy. Basal metabolic rate (BMR) accounts for the majority of energy output when at rest.
Dietary supplement intake does not directly factor into overall energy output. While some supplements may influence energy levels or metabolism, they are not a primary factor like the others listed.