MEDI110 Lecture Notes - Lecture 21: Negative Energy, Thermogenesis, Energy Density
30 Oct 2018
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Document Summary
A state which energy intake in the form of food and/or alcohol matches the energy expended primary through physical activity and basal metabolism. Energy intake is higher than energy expended, resulting in weight gain. Energy intake is lower than energy expended, resulting in weight loss. Food consumption and its energy calorimetry and atwater factors (kj/g for a type of molecule e. g fat, protein, and carbohydrates) Food intake body deciding how much and often to eat, when to start and when to stop = appetite. Satiety absence of feelings of hunger between meals. Cognitive influences time of day, special events etc. Satiation in foods/meals is found greater in protein based, lower in energy density (higher fibre foods which have a slower gastric emptying and lower gi), Fat = reduces by still has strong satiety signals. Adipose tissue, 1kg body fat = ~ 30,000 kj energy.
