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Human Nutrition - Nutrition Obesity Heart disease...

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Obesity Heart disease & Arteriolosclerosis Diabetes Genetically modified foods Artificial sweeteners Diets Nutrition Nutrition
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What are nutrients? Essential substances that your body needs in order to grow and stay healthy What is a  Nutrient?
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Nutrients Some provide energy. All help build cells and tissues, regulate bodily processes such as breathing. No single food supplies all the nutrients the body needs to function.
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Nutrients in the Human Diet Nutrients in the Human Diet Macronutrients Water Amino Acids and Proteins Lipids Carbohydrates Micronutrients Vitamins Six categories of nutrients:
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What is a calorie? The energy obtained from carbohydrates, proteins, and fats is measured in units called calories . Calories
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Healthy Diets Require: Water Carbs, Proteins, Lipids, Amino Acids Vitamins: - water-soluble (thiamine, riboflavin, folic acid) - fat-soluble (Vitamin A, D, E, K) Minerals (Fe, Ca, P, Na, K)
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Healthy Eating Pyramid Figure 24.1b Red meat, butter: use sparingly Vegetables in abundance Whole-grain foods at most meals Daily excercise and weight control Dairy or calcium supplement: 1–2 servings White rice, white bread, potatoes, pasta, sweets: use sparingly Fish, poultry, eggs: 0–2 servings Nuts, legumes: 1–3 servings Fruits: 2–3 servings Plant oils at most meals
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The Food Pyramid www.mypyramid.gov www.mypyramid.gov
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Water Water Solvent in which the chemistry of life Solvent in which the chemistry of life occurs occurs cell chemistry occurs in an aqueous cell chemistry occurs in an aqueous medium medium water carries essential nutrients to cells water carries essential nutrients to cells water carries metabolic wastes away water carries metabolic wastes away from cells from cells hydrolysis & dehydration reaction hydrolysis & dehydration reaction stabilizes body temp stabilizes body temp
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Carbohydrates Carbohydrates Energy Metabolism catabolism of glucose during cellular respiration yields ATP for energy- requiring activities glucose stored as glycogen in the liver and muscle cell fibers
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Carbohydrates Carbohydrates Dietary Fiber water-insoluble fiber adds bulk to fecal matter facilitating its passage through and
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