WebCT 275 nutrition

WebCT 275 nutrition - Nutrition KIN 275 Chapter 8 Nutrition...

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Nutrition KIN 275 Chapter 8
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Nutrition Proper nutrition A diet that supplies all the essential nutrients to: Carry out tissue growth, repair and maintenance Provide adequate substrates Help regulate body processes Typical American diet undermines good health Too much fat, sugar, sodium, and calories Too little fiber and calcium
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Essential Nutrients Carbohydrate (CHO) Fat Protein Vitamins Minerals Water
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Carbohydrates Major function – to provide energy 1 gram CHO = 4 calories Should make up 55-60% of total daily calories Found primarily in plant foods
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Carbohydrate Digestion of CHO Converted to glucose Used directly for energy Stored as glycogen in liver and muscle Role of Insulin
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Carbohydrate Two types Simple CHO Sugars (glucose, fructose, lactose, sucrose) Complex CHO Dietary Fiber (fruits, vegetables & grains)
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Complex Carbohydrates Whole-grain High in dietary fiber Delays digestion Feel full longer Enter bloodstream slowly (helps diabetes) Linked to risk for HD, diabetes, HBP, stroke & cancer Refined/Processed Remove the bran & germ Starch & calories retained N fiber, vitamins, minerals Enter bloodstream rapidly ( GI)
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Carbohydrate - Dietary Fiber CHO in plants that is resistant to digestive enzymes Two types Soluble – lowers cholesterol Insoluble – binds with water, making feces bulkier/softer (health benefits such as constipation, hemorrhoids and lower risk of colon cancer fiber intake Diets often lower in fat & cholesterol Recommended daily intake: 38 grams for men and 25 grams for women
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Fat Concentrated source of energy 1 gram = 9 calories Most fat in foods is in the form of triglycerides Glycerol + 3 fatty acids Functions Absorption of fat soluble vitamins Insulates body; supports/cushions organs Supplies energy Palatability of food (texture/flavor)
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This note was uploaded on 05/05/2008 for the course KIN 275 taught by Professor Lamont during the Spring '06 term at Rhode Island.

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WebCT 275 nutrition - Nutrition KIN 275 Chapter 8 Nutrition...

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