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The science of food: nutrients and substances therein; action, interaction, and balance in relation to health; process by which the organism ingests, absorbs, transports, utilizes, and excretes food substances
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Nutrition
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Nutrients the body cannot make itself and must be obtained from food to prevent deficiencies
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Essential Nutrients
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1) Absence leads to decline2) Regain normal function when restored to diet3) has specific biological factors
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Characteristics of Essential Nutrients
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Composed of carbon, hydrogen, and oxygen and yield 4 kcal/g
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Carbohydrates
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Monosaccharide (glucose)Diasaccharide (sucrose=table sugar)
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Simple Carbohydrates
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Polysaccahride (starch)Dietary Fiber
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Complex Carbohydrates
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Composed of carbon, hydrogen, and oxygen and yields 9 kcal/g
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Lipids
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Major storage form of energy
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Triglycerides
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Two groups of Lipids
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Saturated and Unsaturated Fatty Acids
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Composed of carbon, hydrogen, oxygen, and nitrogen and yields 4 kcal/g
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Protein
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Composed of various elements and enables chemical reactions
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Vitamins
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Inorganic substances that function in cellular processes, nervous systems, water balance, and structural balance
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Minerals
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Composed of hydrogen and oxygen and makes up 60% of our body weight
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Water
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The functions of this is a solvent, lubricant, medium for transport, chemical processes, and temperature regulations
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Water
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Promote a healthy lifestyle and reduce preventable deaths and diseases (reduce obesity in adults, increase healthy foods, lower intake of fats and salts, and increase minerals)
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Healthy People 2010 objectives
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