Macronutrients

Description

Energy nutrients (carbohydrates, fats, proteins and alcohol) will be discussed with reference to chemistry, food sources, absorption, metabolism, physiological functions, development and consequences of deficiency, requirements for Australians, therapeutic use, toxicity and assessment of status. Mechanistic principles of nutrition and their application in preventive and curative aspects of human health throughout the life cycle will be discussed.

Availability

Ourimbah

  • Semester 2 - 2015

Learning Outcomes

1. Relate foods with specific energy nutrients

2. Understand the forms in which energy nutrients are present in foods;

3. Discuss digestion, absorption, transport and metabolism of energy nutrients by human beings;

4. Role of macronutrients in maintaining normal body metabolism and functions as well as in the prevention and treatment of chronic diseases;

5. Apply their knowledge of biochemistry, physiology and other sciences in the understanding of the principles of nutrition with special emphasis on macro-nutrients (carbohydrates, fats, proteins, alcohol and energy).

Content

Energy:

  1. Energy requirements of individuals at various stages of the life cycle.
  2. Regulation of food intake.

Carbohydrates:

  1. Types and food sources - nutritional interest
  2. Digestion and metabolism of carbohydrates
  3. Disorders of carbohydrate metabolism and utilisation
  4. Glucose homeostasis - diabetes
  5. Inborn errors of carbohydrate metabolism
  6. Dietary fibre related diseases
  7. Glycogen loading in athletes
  8. Dietary carbohydrates and dental caries
  9. Nutritive and non-nutritive sweeteners

Lipids:

  1. Types and food sources of fats
  2. Digestion, absorption and transport of fats - factors affecting fat absorption
  3. Essential fatty acid deficiency
  4. Beneficial effects of n-9/n-6/n-3 fatty acids
  5. Ketosis
  6. Cholesterol - food sources, functions and relationship with chronic diseases
  7. Dietary lipids and atheroscierosis
  8. Dietary lipids and cancer
  9. Fat substitutes

Proteins:

  1. Food sources of proteins
  2. Essential amino acids
  3. Digestion and absorption - factors affecting protein absorption
  4. Nutritive value of proteins
  5. Protein energy malnutrition - marasmus, kwashiorkor, cachexia
  6. Inborn errors of protein metabolism - PKU, maple syrup urine disease, homocystinuria etc.

Alcohol:

  1. Alcohol as a nutrient
  2. Alcohol metabolism
  3. Effects on nutritional status - direct and indirect
  4. Toxic effects and nutritional care

Laboratories:

  1. Assessment of macro-nutrient intake
  2. Assessment of nutritional status
  3. Energy expenditure
  4. Some case studies

Assumed Knowledge

FSHN1010 FSHN1020

Assessment Items

Quiz: Tutorial Quizzes (Online)

Presentation: Individual Presentation- Critical Review (Oral)

In Term Test: Mid Semester and Formal Examinations

Contact Hours

Lecture

Face to Face On Campus 2 hour(s) per Week for Full Term

Tutorial

Face to Face On Campus 3 hour(s) per Week for Full Term