NUTR 120 Lecture Notes - Lecture 15: Resting Metabolic Rate, Energy Economics, Calorie
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1 kcal = 1 calorie = 1000 calories. For practical reasons, they have stuck w/ kcal instead of using the metric version, kj. The idea that the amount of calories eaten in a day is equal to the amount of calories burned in a day the(cid:396)e should (cid:271)e (cid:374)o (cid:272)ha(cid:374)ge i(cid:374) the pe(cid:396)so(cid:374)(cid:859)s (cid:449)eight. Energy expenditure = physical activity, basal metabolism, thermogenesis and thermic effect of food. As we get older, our basal metabolism starts to slow down and it may lead to consuming more calories than expenditure. Thermogenesis = the process of heat production. Tee = basal needs + activity + thermogenesis. A sedentary person uses a vast majority of their energy is used for basal needs (to keep the body going) A physically active person has an overall more energy expenditure, but the basal metabolism takes most of the energy.
