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BIOL 203 FUNDAMENTAL NUTRITION LECTURE NOTES 1-4 COMPLETE CONCORDIA UNIVERSITY.
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BIOL 203 FUNDAMENTAL NUTRITION LECTURE NOTES 1-4 COMPLETE CONCORDIA UNIVERSITY.
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BIOL 203 FUNDAMENTALNUTRITION LECTURE NOTES 1-4
COMPLETE CONCORDIA
UNIVERSITY.
, lOMoAR cPSD| 19857451
Lecture 1
Objective :
1. Understand the science of nutrition and the 6 major nutrient classes
2. Learn about nutrition-related chronic diseases
3. Operationalize food sustainability at home
What is nutrition ?
How an organism acquires food and uses food to support all processes
required for its existence.
Biology : Locomotive behaviour, Type and rate of digestion…
Human nutrition : The science of human nutrition is a young science. It is
concerned about the nutrients in food and their actions within the body
including: digestion, absorption, transport, metabolism and excretion.
What is Food ? :
Food is a combination of essential nutrients. Essential nutrients are nutrients
that must be supplied by the diet because the human body cannot
synthesize them • Absence of an essential nutrient would lead to a
deficiency disease and eventually death
• Too much can lead to chronic diseases or sudden death as in overdosing
Energy yielding Nutrients : Lipids, Carbs, Prots
Non Energy yielding Nutrients: Water, Vitamins, Minerals
What else is food?
Food contains non-nutrients like fiber and phytochemicals Phytochemicals
are plantderived chemicals that have biological activity in the body.
The challenge of choosing foods :
- We can split our choices into a simple dichotomy. (processed food vs.
whole foods.)
Factors that Drive Food Choices?
Page 1
, lOMoAR cPSD| 19857451
-Social need, -Psychological needs, -Food flavor, texture and appearance,
preference, - Food availability, -Food marketing, Food costs, -Lifestryle and
beliefs, -Education an income, -Social Network of family and friends,
So What Does Social Psychology Have to Do with Eating?
The Challenge of Choosing Foods Pro-nutrition attitudes do not always align
themselves with behaviour - i.e. healthy eating.
So the solution is:
1- Learn about nutrition (cognitive fix).
2- Learn how to cook (non cognitive fix)
1 + 2 = Vital life skills
Cooking
• Cooking can teach us many things: • How to be organized • How to
socialize • How to love • Chemistry –food chemistry
LECTURE 2 – Nutrient Standards and
Guide lines
Objectives :
1. Dietary Reference Intakes (DRI)
2. Major food groups
3. Canada’s food guide
Dietary Reference Intakes (DRI)
(DRIs) Dietary Reference Intakes ; are reference values (depending on
gender and stages of life) that are quantitative estimates of nutrient intakes
to be used for planning & assessing diets for healthy people. (a set of
recommendations for the proper intake of nutrients).
DRI includes a set of standards that tell us (Main Objectives):
1. The amount of a nutrient needed to prevent deficiency disease in healthy
people
2. The amount of a nutrient that may reduce the risk of chronic disease
3. The upper level of safety for nutrients (to reduce the risk of deficiency
DRIs – Most Nutrients DRIs – Energy and Macronutrients
Page 2
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