1 pp CHO 2011 - Carbohydrates Overview Overview...

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Unformatted text preview: Carbohydrates Overview Overview Carbohydrate Digestion Carbohydrate Absorption Glucose & galactose Active transport by SGLT1 Fructose Facilitative transport by GLUT5 Carbohydrate Metabolism Dietary Carbohydrate Essential! Minimum Dietary Requirement Minimum amount carbohydrate required to avoid ketosis ~50 grams/day Glucose is essential energy source for brain, red blood cells, renal medulla Daily amount used ~180 grams/day ~130 g/day can be produced from non-carbohydrate sources (gluconeogenesis) 180-130 g/day = 50 gram minimum dietary requirement Dietary Carbohydrate Essential! Minimum Dietary Requirement Mininimum CHO Requirement Low-carbohydrate diet w/ < 50 gm/day CHO deficient side effects Ketosis Na & K depletion Dehydration Weakness Muscle wasting CNS effects Kidney stress Carbohydrate Consumption Most individuals eat considerably > 100 g/day 2000 kcal/day; 40 % carb; 800 cal 4 = 200 g/day 2002 Carbohydrate RDA...
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This note was uploaded on 12/09/2011 for the course HUN 4445 taught by Professor Sitren during the Spring '08 term at University of Florida.

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1 pp CHO 2011 - Carbohydrates Overview Overview...

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