Chapter 10Objectives for Chapter 10What Is Weight Management and Why Is Maintaining It Important?Slide 4How Do You Know If You’re at a Healthy Weight?Obesity in America: Low Cost, High Impact SolutionsObesity in America: Low Cost, High Impact SolutionsWhat’s Your BMI?Visceral and Subcutaneous Fat Storage in the BodyHow Do You Know if You’re at a Healthy Weight?PowerPoint PresentationHow to Measure Waist CircumferenceHow at Risk Are You?Can You Be Slim and Obese? Hidden Risk of Normal Weight ObesityCan You Be Slim and Obese? Hidden Risk of Normal Weight ObesityWhat Is Energy Balance and What Determines Energy Needs?Energy Balance and ImbalancesThe Three Components of Your Energy NeedsSlide 19Slide 20Slide 21Slide 22Slide 23What Are the Effects of an Energy Imbalance?Slide 25What Factors Are Likely to Affect Body Weight?Slide 27Slide 28Slide 29Slide 30Environmental Factors of Weight GainSlide 32Animation: Increase of Obesity Rates in the United StatesHow Can You Lose Weight Healthfully?Three Pieces of the Long-Term Weight Loss PuzzleSlide 36Adding Volume to Your MealsSlide 38The Volume of Food You EatSlide 40Slide 41Slide 42Food LogFad Diets Are the Latest FadSlide 45How Can You Maintain Weight Loss?Extreme Measures for Extreme ObesitySlide 48Gastric Bypass and Gastric BindingHow Can You Gain Weight Healthfully?Choosing more energy-dense foods can help those who are underweight gain weightWhat Is Disordered Eating and What Are the Warning Signs?Slide 53Slide 54Slide 55Slide 56Factors That Contribute to Eating DisordersSlide 58Slide 59How Are Eating Disorders Treated?© 2012 Pearson Education, Inc.Chapter 10Weight Management and Energy Balance© 2012 Pearson Education, Inc.Nutrition and You, 2eObjectives for Chapter 10Explain the concept of a healthy weight, and differentiate between the conditions of underweight, overweight, and obesity. Define and describe the concept of energy balance.Discuss what happens to the body if too many or too few calories are consumed.Define and describe the concepts of hunger, appetite, and satiety.Explain how the body regulates hunger.List three environmental factors that often contribute to higher body weight. Describe a basic plan for healthy weight loss and/or weight gain.Define the terms disordered eating and eating disorder, and give two examples of each.© 2012 Pearson Education, Inc.Nutrition and You, 2eWhat Is Weight Management and Why Is Maintaining It Important?Weight management: maintaining weight within a healthy rangeHealthy weight is one that doesn’t increase the risk of developing weight-related health problems and diseasesOverweight: 10 to 15 pounds more than healthy weight67 percent of Americans are overweightObesity: 25 to 40 pounds more than healthy weight34 percent of Americans are obese© 2012 Pearson Education, Inc.Nutrition and You, 2eWhat Is Weight Management and Why Is Maintaining It Important?Being overweight increases risk of hypertension, stroke, heart disease, gallbladder disease, type 2 diabetes, osteoarthritis, some cancers, and sleep apneaLosing as little as 10 to 20 pounds reduces riskUnderweight: weighing too little for your heightMay be caused by: excessive calorie restriction and/or physical activity, underlying medical condition, emotional stressAt risk for low body protein and fat stores and a depressed immune system (particularly elderly)© 2012 Pearson Education, Inc.Nutrition and You, 2eHow Do You Know If You’re at a Healthy Weight?Measure your BMI:Body mass index (BMI) = weight (lbs) x 703 height squared (in2)BMI > 25 is overweight: modest increase in risk of dying from diseases> 30 is obese: 50 to 100 percent higher risk of dying prematurely compared to healthy weight< 18.5 is underweight, can also be unhealthy© 2012 Pearson Education, Inc.Nutrition and You, 2eObesity in America: Low Cost, High Impact Solutions© 2012 Pearson Education, Inc.Nutrition and You, 2eObesity in America: Low Cost, High Impact Solutions Discussion QuestionsWhat health and social issues are linked to childhood obesity?What kinds of school programs can be implemented to change the eating habits of children?What can parents and others do to ensure that children are eating nutritious meals at school and are getting enough exercise?© 2012 Pearson Education, Inc.Nutrition and You, 2eWhat’s Your BMI?Figure 10.1© 2012 Pearson Education, Inc.Nutrition and You, 2eVisceral and Subcutaneous Fat Storage in the BodyFigure 10.2© 2012 Pearson Education, Inc.Nutrition and You, 2eHow Do You Know if You’re at a Healthy Weight?Measure your body fat and its location:Average healthy adult male between 20 and 49 years of age: 16 to 21 percent of weight is body fatAverage healthy female: 22 to 26 percent body fatTechniques for measuring amount of body fat: skinfold thickness measurements, bioelectrical impedance, dual-energy X-ray absorptiometry, underwater weighing, and air displacementCentral obesity (excess visceral fat) increases risk of heart disease, diabetes, and hypertensionMeasure waist circumference© 2012 Pearson Education, Inc.Nutrition and You, 2eTable 10.1© 2012 Pearson Education, Inc.Nutrition and You, 2eHow to Measure Waist CircumferenceFigure 10.3© 2012 Pearson Education, Inc.Nutrition and You, 2eHow at Risk Are You?Figure 10.4© 2012 Pearson Education, Inc.Nutrition and You, 2eCan You Be Slim and Obese? Hidden Risk of Normal Weight Obesity© 2012 Pearson Education, Inc.Nutrition and You, 2eCan You Be Slim and Obese? Hidden Risk of Normal Weight ObesityDiscussion QuestionsHow can a person who is “normal” weight be at risk for obesity-related diseases?What are health risks of women who are normal weight obese?In addition to increased percentage of body fat, what characteristic of body fat points to increased health risks?© 2012 Pearson Education, Inc.Nutrition and You, 2eWhat Is Energy Balance and What Determines Energy Needs?Energy balance is calories in versus calories outPositive energy balance: consume more calories than expend, leads to fat storage, weight gainNegative energy balance: calorie intake falls short of needs, leads to weight lossEnergy needs are different for everyoneEnergy needs comprised of:Basal metabolismThermic effect of foodPhysical activities© 2012 Pearson Education, Inc.Nutrition and You, 2eEnergy Balance and ImbalancesFigure 10.5© 2012 Pearson Education, Inc.Nutrition