BIOL 203 FUNDAMENTAL NUTRITION LECTURE NOTES 1-4 COMPLETE CONCORDIA UNIVERSITY.

BIOL 203 FUNDAMENTAL NUTRITION LECTURE NOTES 1-4 COMPLETE CONCORDIAUNIVERSITY.
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?