Major%20Nutrients%202007

Major%20Nutrients%202007 - Major Nutrients Required...

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1 Major Nutrients Required Nutrients • Carbohydrates •Fa t •P ro te in • Minerals • Vitamins • Water Nutrients Used for Energy • Carbohydrates
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2 CHO Metabolism and Use Glucose • Preferred energy source for most tissues • Primary energy source when soluble CHO in diet • Plasma glucose highly regulated – Rises immediately after meal and falls slowly – Routinely high with several metabolic conditions Glycemic Index
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3 Glycemic Index Insulin • Anabolic hormone that encourages storage of blood glucose and fat – Peaks shortly after blood glucose post-meal • Action balanced by glucagon • Insulin resistance is common – Inadequate response to hormone – Factors include inadequate exercise, excessive energy intake, obesity, age Glucose Tolerance Test
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Nutrients Used for Energy • Carbohydrates – Primary source – Non-structural – primary source; stored as liver and muscle glycogen – Structural (crude fiber) - VFA •Fa t – Energetically dense – Small proportion of ration Fats (Crude Fat) • Most concentrated source of energy – 2.25 x’s CHO
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This note was uploaded on 04/30/2008 for the course ADSC 4390 taught by Professor Turner during the Spring '08 term at University of Georgia Athens.

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Major%20Nutrients%202007 - Major Nutrients Required...

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