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Unformatted text preview: Lectures 1 & 2 Sunday, January 29, 2006 1:54 PM Lecture/Course Notes Material Lecture 1 • What is nutrition? o It is the science of the nutrients and "other substances" in food: • Their action, interaction, and balance in relation to health and disease • The processes by which the organism ingests, digests, absorbs, transports, utilizes, and excretes food substances • How else can we describe nutrition? o It is a science - we use the scientific method to gather facts and principles • More specifically we focus on the biology and chemistry in human beings o It is an art - sociology and psychology have a huge bearing on it o The main point is that nutrition and food touches many fields, including unexpected ones such as physics, communications, psychiatry, religion, etc. • How did Whitney & Rolf seek to extend the earlier definition of nutrition? o They think that it should include the environment and human behavior as they relate to food • Talk about dietitians/nutritionists. o They fill the gap between nutrition and human need: how do we match human needs (and wants!) with good nutrition? o They are members of the Dietitians of Canada o They have the credentials "R.D." (for Registered Dietitian), acquired as the result of a dietetics degree from a recognized institution Lecture 2 • State 3 reasons why it is important to study nutrition. o Population-level concerns: global health, community health, etc. o Individual concerns: individual well-being, prevention of chronic diseases, etc. o Improved knowledge base: smarter grocery shopping, more informed decision making, etc. • Discuss some interactions in human nutrition we see in everyday life. Start with listing the 4 major categories and expound from there. o Human nutrition • The food choices we make, how the food is prepared, and so on will affect our nutritional status o Health status • Endemic diseases such as AIDS in Africa disable so many able-bodied men that no one is there to harvest the food • We can have diseases that affect the way we process food - sometimes we have allergies, sometimes it's diabetes, and so on o Cultural factors • Perhaps our culture emphasizes a certain diet, or social situations dictate certain foods (think beer) o Ecological factors • The climate can affect the foods we are able to grow • Pollution can poison the foods we eat • Discuss population death rates. What is the trend we are seeing? What is the goal we are working towards?...
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This note was uploaded on 04/15/2011 for the course HLTH 346 taught by Professor Dr.rhonahanning during the Fall '10 term at Waterloo.
- Fall '10