NUT 10 Lecture Notes - Lecture 20: Hydrostatic Weighing, Gallbladder Disease, Osteoarthritis
Document Summary
69% ( ) of us adult population obese/overweight (bmi >25) in 97 million people. 17% of 2-19 year olds are obese. billion annual cost of obesity in the us. Obese 5 year-old is 4x as likely to be obese by teen years. Freshman 15 (actually 4-8 lbs) represents dramatic change of lifestyle. Schedule, sleep patterns, food availability, uncontrolled portions, decline in physical activity. Thermal effect of food - amount of calories we need to digest & assimilate food. Calorie imbalance - excess calories converted to fat & stored in body fat stores. Calories out (burning less) < calories in (eating more) Estimated excess of 50-100 calories daily explains obesity epidemic. Caloric intake is constant, but caloric output decreases. Caloric intake increases and exceeds caloric output. Caloric intake increases & calorie output decreases. Our genes have not changed in years - we are designed to defend against weight loss.
