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An Overview of Nutrition
Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition in Your Life Nutrition
The science of foods and the substances they contain Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition in Your Life Food Derived from plant or animal sources
Provide energy and nutrients Used by the body for maintenance, growth, and repair Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition in Your Life Diet The foods one consumes
The quality of which affects the risk of chronic diseases Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Food Choices Personal preference Habit Ethnic heritage or tradition
Social interactions Availability, convenience, economy Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Food Choices Positive and negative associations Emotional comfort
Values Body weight and image Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Food Choices Nutrition and health benefits Functional foods
Provide health benefits beyond their nutrient contributions Ex. Whole foods, fortified foods Copyright 2005 Wadsworth Group, a division of Thomson Learning
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The Nutrients Energy defined Nutrient defined
Copyright 2005 Wadsworth Group, a division of Thomson Learning
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The Nutrients Composition of foods Six classes of nutrients
Nonnutrients Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Body Composition Copyright 2005 Wadsworth Group, a division of Thomson Learning
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The Nutrients Chemical composition of nutrients
Inorganic vs. Organic nutrients Copyright 2005 Wadsworth Group, a division of Thomson Learning
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The Nutrients Inorganic nutrients Minerals Water
Copyright 2005 Wadsworth Group, a division of Thomson Learning
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The Nutrients Organic nutrients Carbohydrates Lipids Proteins Vitamins
Copyright 2005 Wadsworth Group, a division of Thomson Learning
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The Nutrients Copyright 2005 Wadsworth Group, a division of Thomson Learning
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The Nutrients Essential nutrients Macronutrients vs. micronutrients
Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Energy-Yielding Nutrients
Calories and kilocalories Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Energy-Yielding Nutrients
Energy from foods Energy density Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Energy Density Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Energy-Yielding Nutrients
Energy in the body Energy for activity Stored energy Other roles of energy-yielding nutrients Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Vitamins Organic Not energy-yielding Essential
Water-soluble vs. fat-soluble Vulnerable to destruction Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Minerals Inorganic Not energy-yielding Essential Indestructible
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Water Inorganic Not energy-yielding Essential
Copyright 2005 Wadsworth Group, a division of Thomson Learning
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The Science of Nutrition
Human genome Nutritional genomics Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Research The Scientific Method Hypothesis vs. Theory
Experimental group vs. control group Randomization Sample size Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Research The Scientific Method Epidemiological studies
Laboratory-based studies Human intervention or clinical trials Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Research Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Research Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Research The Scientific Method Placebo effect
Blind experiment Double-blind experiment Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Research The Scientific Method Correlations and causes
Positive correlation vs. negative correlation Replication Peer review Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Research Research Vs. Rumors Scientific validity
Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Dietary Reference Intakes
Estimated Average Requirements Recommended Dietary Allowances Adequate Intakes Tolerable Upper Limits Copyright 2005 Wadsworth Group, a division of Thomson Learning
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DRI Copyright 2005 Wadsworth Group, a division of Thomson Learning
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DRI Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Energy Recommendations
Estimated Energy Requirement Acceptable Macronutrient Distribution Ranges Carbohydrate: 45% - 65% Fat: 20% - 35% Protein: 10% - 35% Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Energy Recommendations
Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Using Nutrient Recommendations
Estimates of energy & nutrient intakes apply to healthy people Recommendations are NOT minimum requirements Recommendations are NOT optimal for all people Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Using Nutrient Recommendations
Recommendations should be met by consuming a varied diet Recommendations apply to average daily intakes Each DRI category serves a unique purpose Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Comparing Nutrient Recommendations
U.S. & Canada: DRI Committee International: FAO and WHO Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Assessment Malnutrition Undernutrition vs. overnutrition
Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Assessment of Individuals
Historical information Anthropometric data Physical examination Laboratory tests Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Assessment Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Assessment of Individuals
Primary deficiency vs. secondary deficiency Overt symptoms Subclinical deficiency Covert symptoms Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Assessment of Populations
National nutrition surveys National health goals Healthy People 2000 Healthy People 2010 Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Assessment of Populations
Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Diet and Health Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Diet and Health Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Risk Factors for Chronic Diseases
Risk factors persists Risk factors cluster Risk factors in perspective Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Information and Misinformation
Not everything on the Internet is true!! Determination of the reliability of a website Not everything on the news is accurately reported!! Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Information and Misinformation
American Dietetic Association (ADA) Registered dietitian (RD) Dietetic technician, registered (DTR) Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Information and Misinformation
Finding credible information Government health agencies Volunteer health agencies reputable consumer groups Reputable consumer groups Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Information and Misinformation
Finding credible information Professional health organizations Professional journals Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Nutrition Information and Misinformation
Identifying misinformation Copyright 2005 Wadsworth Group, a division of Thomson Learning
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Copyright 2005 Wadsworth Group, a division of Thomson Learning
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