Ch 1 slides (color) - Chapter 1 •  •  •  • ...

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Introducing the Nutrients Dietary Reference Intakes Nutrition Assessment Diet and Health Chapter 1 Introducing the nutrients What is a nutrient ? –Provided in diet –Needed for growth and maintenance –Essential Classes of Nutrients • Carbohydrates • Proteins Lipids (Fats) • Vitamins • Minerals • Water
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Organic Nutrients • Organic – contains carbon – large complex molecules carbohydrate • protein • lipids • vitamins Inorganic – contains no carbon – simple molecules • minerals • water Inorganic Nutrients Energy –Yielding Nutrients Food Proteins Lipids Energy
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Energy from Foods Kilocalorie yield from nutrients Lipids = 9 kcal / gram Carbohydrates = 4 kcal / gram Proteins = 4 kcal / gram Measured in kilocalories (kcal) Calculating Kilocalories from Foods 1 cup of whole milk contains: 12 grams (g) of carbohydrates 8 grams (g) of protein 8 grams (g) of fat How many kilocalories (kcal) are in one cup of whole milk?
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