Unit 2254: Nutrition and Food Science

1. Overview of Nutrition

1.1 Introduction to Nutrition

• Definition and importance of nutrition
• Overview of macronutrients: carbohydrates, proteins, fats
• Overview of micronutrients: vitamins, minerals
• Role of water and fiber

1.2 Nutrition and Health

• Impact of nutrition on physical and mental well-being
• Nutrition’s role in disease prevention and health promotion

2. Food Groups and Dietary Guidelines

2.1 The Major Food Groups

• Fruits and vegetables
• Grains and cereals
• Proteins: meat, fish, legumes, nuts
• Dairy and alternatives
• Fats and oils

2.2 Principles of a Balanced Diet

• Importance of variety, moderation, and balance
• Portion control and meal planning

2.3 Dietary Guidelines and Recommendations

• National and international dietary guidelines (e.g., USDA, WHO)
• Nutrient reference values and daily intake recommendations

3. Digestion and Absorption of Nutrients

3.1 Digestive System Anatomy

• Major organs: mouth, esophagus, stomach, intestines
• Accessory organs: liver, pancreas, gallbladder

3.2 Process of Digestion

• Mechanical and chemical digestion
• Role of digestive enzymes

3.3 Absorption and Transport

• Nutrient absorption in the small intestine
• Transport of nutrients via bloodstream and lymphatic system

4. Nutritional Requirements at Different Life Stages

4.1 Infants and Children

• Nutritional needs for growth and development
• Breastfeeding and formula feeding

4.2 Adolescents

• Increased energy and nutrient needs
• Role of nutrition in puberty

4.3 Adults

• Maintaining health and preventing chronic diseases

4.4 Pregnant and Lactating Women

• Increased nutritional demands
• Key nutrients: folic acid, iron, calcium

4.5 Elderly

• Changes in metabolism and nutrient absorption
• Addressing malnutrition and dietary concerns

5. Food Labeling and Nutritional Information

5.1 Components of Food Labels

• Ingredient list
• Nutrition facts panel
• Serving sizes

5.2 Interpreting Nutritional Information

• Understanding macronutrient and micronutrient values
• Daily value percentages

5.3 Making Informed Food Choices

• Identifying added sugars, trans fats, allergens
• Evaluating health claims

6. Common Nutritional Disorders and Diseases

6.1 Obesity

• Causes, health risks, and prevention

6.2 Diabetes Mellitus

• Nutritional management and lifestyle interventions

6.3 Cardiovascular Diseases

• Role of diet in prevention and management

6.4 Eating Disorders

• Types: anorexia nervosa, bulimia, binge eating
• Nutritional and psychological considerations

7. Food Preservation and Safety

7.1 Methods of Food Preservation

• Physical methods: refrigeration, freezing, drying
• Chemical methods: preservatives, pickling
• Thermal processing: pasteurization, canning

7.2 Food Safety Practices

• Hygiene and sanitation
• Avoiding cross-contamination
• Proper food storage and handling

7.3 Foodborne Illnesses

• Common pathogens and symptoms
• Prevention strategies

7.4 Regulatory Framework

• Role of government agencies (e.g., FDA, USDA)
• Food safety standards and inspections

8. Sustainability and Food Choices

8.1 Sustainable Food Production

• Concepts of sustainable agriculture and farming practices
• Impact of food production on natural resources

8.2 Environmental Impact of Food Choices

• Carbon footprint of different foods
• Water use and land degradation

8.3 Promoting Sustainable Consumption

• Reducing food waste
• Supporting local and seasonal foods
• Plant-based diets and alternatives

9. Food Science and Technology

9.1 Introduction to Food Science

• Definition and scope
• Role of food scientists

9.2 Food Processing Methods

• Mechanical, thermal, and chemical processing
• Benefits and challenges

9.3 Food Additives

• Types and purposes (preservatives, colorants, flavor enhancers)
• Safety and regulation

9.4 Ensuring Food Quality and Safety

• Quality control methods
• Packaging technologies

10. Current Trends in Nutrition and Food Science

10.1 Functional Foods

• Definition and examples
• Health benefits

10.2 Personalized Nutrition

• Role of genetics and lifestyle
• Nutrigenomics

10.3 Emerging Food Technologies

• Alternative proteins (plant-based, cultured meat)
• Food fortification and biofortification
• Smart packaging and food tracking