LFIT5 - Nutrition Basic principles of nutrition Diet refers...

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Nutrition Basic principles of nutrition Diet refers to food selection Nutrients serve three major roles o Growth, repair, and maintenance of all body cells o Regulation of body processes o Supply of energy for cells Some nutrients can be made by the body Essential nutrients o Must be supplied by the individual’s diet 3 essential nutrients o Carbs- (CHO) provide body with energy While body will run off fat and protein, CHO is preferred source of energy 55% of total calories intake should be accounted by CHO Classified into: Simple (sugar) o Glucose (blood sugar) is needed to fuel cells o Fructose (fruit sugar) occurs in honey o Lactose (milk sugar) o Sucrose (table sugar) o Must be careful not to consume too much in diet Complex (starch, glycogen, fiber)
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o Starches Found in cereals, grains, potatoes Broken down during digestion into glucose units and stored as glycogen Glycogen is stored in the liver and muscles Glycogen is broken down and released as glucose in the
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This note was uploaded on 04/01/2008 for the course LFIT 103 taught by Professor Baggalini during the Spring '08 term at UNC.

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LFIT5 - Nutrition Basic principles of nutrition Diet refers...

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