Which term refers to the total amount of energy expended in one day?

The total amount of energy expended in one day is referred to as Total Daily Energy Expenditure (TDEE). This term encompasses all the calories burned throughout the day, including those from metabolism (Basal Metabolic Rate), physical activities (like exercise and non-exercise activities), and the thermic effect of food (calories burned during digestion). Understanding TDEE is crucial for various applications, such as designing nutrition plans, weight management strategies, and personalized fitness programs, as it provides a comprehensive view of an individual's energy needs.