NUTR 132 Lecture Notes - Lecture 7: Energy Economics, Negative Energy
6 Dec 2018
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20% or more = obesity: dietary patterns, westernized dietary patterns, high in saturated fats, sugars, and sodium, over 70% of north american adults are overweight. i. ii. 17% of youth are obese: excess body fatness i. Increases the likelihood of many health problems: signals for evaluation of diet and lifestyle, greater than 10 pounds of weight gain, positive & negative energy balance, energy balance: energy input = energy output i. Energy intake, in the form of food and beverages, matches the energy expended, primarily through basal metabolism and physical activity. b: positive energy balance, negative energy balance i. i. Energy intake is greater than energy expended, resulting in weight gain. Energy intake is less than energy expended, resulting in weight loss: 1 lb. weight loss = approximately 3500 kcal (calories), energy intake, energy needs met by food intake. i. Represented by number of calories eaten each day: average adult is 8 pounds heavier than just 10 years ago. i. ii.
