HUMNNTR 2210 Lecture Notes - Lecture 13: Adipose Tissue, Muscle Tone, Indirect Calorimetry
8 Oct 2016
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Document Summary
1 billion people worldwide are overweight or obese. Westernized diets are characterized by high saturated fat, sugar, and sodium. Excess body fatness increases increased risk of obesity-related chronic disease. Collective efforts needed to combat obesity: government agencies, food industry, health professionals, and communities. Energy intake (food and beverages) matches energy expended (primarily through basal metabolism and physical activity) Energy intake is greater than energy expended, generally resulting in weight gain. Energy intake is less than energy expended, resulting in weight loss. Energy needs met by food intake: represented by number of calories eaten each day, 1-pound fat = 3500 kcals. Average adult is 8 pounds heavier than just 10 years ago: cheap cost of energy dense foods, food availability (vending machines) Measures calorie content by burning dried portion of food. Burning food raises temperature of water surrounding chamber holding food.
