health 6

health 6 - Nutrition Lifetime Fitness Lesson 6, Chapters 7...

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Nutrition Lifetime Fitness Lesson 6, Chapters 7 and 8 I. Why do you need to know about nutrition? II. Basic Principles of Nutrition 3 Essential nutrients: Carbohydrates, Fats, Proteins Regulator (Micronutrients) nutrients: Minerals, Vitamins, Water Over-nutrition Eating too much food or specific nutrients Common problem in the United States Can lead to obesity Some nutrients are toxic in large doses as well o Typically linked to vitamin mineral usage Energy value of food is measured in calories o Carbohydrates 4 cal/g o Fat 9 cal/g o Protein III. Carbohydrates (CHO)- provide body with energy. While body will also run on fat and protein, CHO is preferred source of energy. 55% of diet should be carbs Simple carbohydrates- Glucose-blood sugar. Needed to fuel cells. Fructose- fruit sugar. Occurs naturally in honey Lactose- Milk sugar Sucrose Table sugar o Must be careful not to consume to much b/c these are empty calories Complex carbohydrates (long glucose chains) Found in cereal grains. Starches Fiber Not digested in small intestine Moves through digestive tract relatively unchanged Sources: Fruits, Veggies
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Low Fiber Diet are blamed for intestinal problems: o Hemorrhoids o Colon cancer o Divertculosis May be helpful in lowering blood cholesterol levels IV. Fats- Extremely important in one’s diet. Extra calories consumed as carbs, proteins,
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This note was uploaded on 03/30/2008 for the course PHYA 105 taught by Professor Staff during the Fall '07 term at UNC.

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health 6 - Nutrition Lifetime Fitness Lesson 6, Chapters 7...

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