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Nutrition is the science that interprets the interaction of nutrients and other substances in food in relation to maintenance, growth, reproduction, health and disease of an organism. It includes food intake, absorption, assimilation, biosynthesis, catabolism and excretion. The diet of an organism is what it eats, which is largely determined by the availability, the processing and palatability of foods.
- Publisher
- LibreTexts
- Source
- LibreTexts
- License
- CC BY-NC-SA
- Language
- EN
Contents· 164 sections
- 01: Nutrition and You
- 1.1: Chapter Introduction
- 1.2: Defining Nutrition, Health, and Disease
- 1.3: What Are Nutrients?
- 1.4: The Broad Role of Nutritional Science
- 1.5: Health Factors and Their Impact
- 1.6: Assessing Personal Health
- 1.7: A Fresh Perspective: Sustainable Food Systems
- 1.8: Nutrition and You (Exercises)
- 02: Achieving a Healthy Diet
- 2.01: Chapter Introduction
- 2.02: A Healthy Philosophy toward Food
- 2.03: What Is Nutritional Balance and Moderation?
- 2.04: Understanding the Bigger Picture of Dietary Guidelines
- 2.05: National Goals for Nutrition and Health: Healthy People 2020
- 2.06: Recommendations for Optimal Health
- 2.07: Understanding Dietary Reference Intakes (DRI)
- 2.08: Discovering Nutrition Facts
- 2.09: When Enough is Enough
- 2.10: Nutrition and the Media
- 2.11: Exercises
- 03: Nutrition and the Human Body
- 3.1: Chapter Introduction
- 3.2: The Basic Structural and Functional Unit of Life: The Cell
- 3.3: Digestion and Absorption
- 3.4: Nutrients Are Essential for Organ Function
- 3.5: Energy and Calories
- 3.6: Disorders That Can Compromise Health
- 3.7: Exercises
- 04: Carbohydrates
- 4.1: Introduction to Carbohydrates
- 4.2: A Closer Look at Carbohydrates
- 4.3: Digestion and Absorption of Carbohydrates
- 4.4: The Functions of Carbohydrates in the Body
- 4.5: Looking Closely at Diabetes
- 4.6: Health Consequences and Benefits of High-Carbohydrate Diets
- 4.7: Carbohydrates and Personal Diet Choices
- 4.8: The Food Industry: Functional Attributes of Carbohydrates and the Use of Sugar Substitutes
- 4.9: Carbohydrates (Exercises)
- 05: Lipids
- 5.01: Prelude to Lipids
- 5.02: What Are Lipids
- 5.03: How Lipids Work
- 5.04: Digestion and Absorption of Lipids
- 5.05: Understanding Blood Cholesterol and Heart Attack Risk
- 5.06: Balancing Your Diet with Lipids
- 5.07: Lipids and the Food Industry
- 5.08: Lipids and Disease
- 5.09: A Personal Choice about Lipids
- 5.10: Lipids (Exercises)
- 06: Proteins
- 6.1: Prelude to Proteins
- 6.2: Defining Protein
- 6.3: The Role of Proteins in Foods - Cooking and Denaturation
- 6.4: Protein Digestion and Absorption
- 6.5: Protein’s Functions in the Body
- 6.6: Diseases Involving Proteins
- 6.7: Proteins, Diet, and Personal Choices
- 6.8: Proteins (Exercises)
- 7: Vitamins
- 7.1: Vitamins: Basic Concepts
- 7.2: Fat Soluble Vitamins
- 7.2A: Vitamin A
- 7.2B: Vitamin D
- 7.2C: Vitamin E
- 7.2D: Vitamin K
- 7.3: Water Soluble Vitamins
- 7.3A: Vitamin B₁ (Thiamine)
- 7.3B: Vitamin B₂ (Riboflavin)
- 7.3C: Vitamin B₃ (Niacin)
- 7.3D: Vitamin B₅ (Pantothenic acid)
- 7.3E: Vitamin B₆ (Pyridoxine)
- 7.3F: Vitamin B₇ (Biotin)
- 7.3G: Vitamin B₉ (Folic acid)
- 7.3H: Vitamin B₁₂ (Cobalamin)
- 7.3I: Vitamin C (Ascorbic acid)
- 08: Water and Minerals
- 8.1: Water
- 8.2: Minerals - Basic Concepts
- 8.3: Overview of Fluid and Electrolyte Balance
- 8.4: Water’s Importance to Vitality
- 8.5: Regulation of Water Balance
- 8.6: Major Minerals
- Calcium
- Chloride
- Introduction to Major Minerals
- Magnesium
- Phosphorus
- Potassium
- Sodium
- Sulfur
- 8.7: Trace Minerals
- Chromium
- Copper
- Fluoride
- Iodine
- Iron
- Manganese
- Molybdenum
- Prelude to Trace Minerals
- Selenium
- Zinc
- 09: Energy Balance and Body Weight
- 9.1: Prelude to Energy Balance and Body Weight
- 9.2: Indicators of Health: Body Mass Index, Body Composition, and Fat Distribution
- 9.3: Balancing Energy Input with Energy Output
- 9.4: Too Little or Too Much Weight?
- 9.5: Dietary, Behavioral, and Physical Activity Recommendations for Weight Management
- 9.6: Energy Balance and Body Weight (Exercises)
- 10: Physical Fitness
- 10.1: Introduction to Nutrition and Physical Fitness
- 10.2: Aerobic Exercise
- 10.3: Anaerobic Exercise
- 10.4: Fitness Supplements and Steroids
- 10.5: How do my muscles get the Energy to perform work?
- 10.6: Nutrients that are critical to athletes
- 10.7: Creating your own fitness plan
- 11: Food Safety and the Future of our Food
- 11.01: Protecting Our Food
- 11.02: Microbes in Food
- 11.03: Food-Borne Illness
- 11.04: Common Food-Borne Pathogens
- 11.05: Foodborne Illness and Food Safety
- 11.06: Food Preservation
- 11.07: Preparing for Disasters
- 11.08: Food Additives
- 11.09: Start Your Sustainable Future Today
- 11.10: Genetically Modified Foods (GMO's)
- 12: From Pregnancy to the Toddler Years
- 12.1: Prelude to From Pregnancy to the Toddler Years
- 12.2: The Human Life Cycle
- 12.3: Pregnancy and Nutrition
- 12.4: Infancy and Nutrition
- 12.5: Nutrition in the Toddler Years
- 12.6: From Pregnancy to the Toddler Years (Exercises)
- 13: From Childhood to the Elderly Years
- 13.1: Prelude to Childhood to the Elderly Years
- 13.2: The Human Life Cycle Continues
- 13.3: Childhood and Nutrition
- 13.4: Puberty and Nutrition
- 13.5: Older Adolescence and Nutrition
- 13.6: Young Adulthood and Nutrition
- 13.7: Middle Age and Nutrition
- 13.8: Old Age and Nutrition
- 13.9: Exercises
- 14: Food Politics and Perspectives
- 14.1: Prelude to Food Politics and Perspectives
- 14.2: Historical Perspectives on Food
- 14.3: The Food Industry
- 14.4: The Politics of Food
- 14.5: Food Cost and Inflation
- 14.6: The Issue of Food Security
- 14.7: Nutrition and Your Health
- 14.8: Diets around the World
- 14.9: Food Politics and Perspectives (Exercise)
- 15: Achieving Optimal Health - Wellness and Nutrition
- 15.1: Chapter Introduction
- 15.2: Diet Trends and Health
- 15.3: Fitness and Health
- 15.4: Threats to Health
- 15.5: Foodborne Illness and Food Safety
- 15.6: Start Your Sustainable Future Today
- 15.7: Careers in Nutrition
- 15.8: Achieving Optimal Health - Wellness and Nutrition (Exercises)