Chapter 1 - FUNDAMENTALS OF NUTRITION Introductions Course...

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FUNDAMENTALS OF NUTRITION
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Introductions Course overview Influences on personal food habits Some definitions Essential nutrients
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Energy values of food Healthy People 2010 Dietary Guidelines for Americans 2005 Science versus quackery Reliable nutrition information
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Why do YOU choose to eat the Why do YOU choose to eat the foods that you do foods that you do
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Personal Influences Time Cost Sensory Health status Health beliefs Peers/social pressure Location Nutrition knowledge Personal preferences Availability Convenience Values, beliefs
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Nutrition: definitions Study of human behavior related to food
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Nutrition: The study of the components of food and their: ingestion, digestion, absorption, transport, metabolism, interaction,
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Metabolism: The sum total of all chemical reactions that occur in the body.
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Essential Nutrients Protein Fat Vitamins Minerals Water
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Elements in the Nutrients Elements in the Nutrients
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Essential Nutrients are required for growth and reproduction cannot be synthesized by the body
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Non-nutrients Fiber Phytochemicals Etc
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Some foods offer beneficial non-nutrients called phyto- chemicals.
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Energy Nutrients 1 gram Carbohydrate (CHO) = 4 kcal. 1 gram Protein = 4 kcal. 1 gram Fat = 9 kcal. Note: Alcohol = 7 kcal.
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Example: 1 C. whole milk 12 gm CHO x 4 kcal/gm. = 48 kcal. 8 gm. Protein x 4 kcal/gm. = 32 kcal. 8 gm. Fat x 9 kcal/gm. = 72 kcal. _______ 152 kcal.
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1/8 Cherry Pie 61 gm. CHO 4 gm. protein 19 gm. fat
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Calculating % of calories from energy nutrients grams of the nutrient X cal/gram of the nutrient X 100 total calories % of calories from CHO gm. of CHO X 4 cal/gram X 100 Total calories % of calories from protein gm. of protein X 4 cal/gram X 100 Total calories % of calories from fat gm. of fat X 9 cal/gram X 100 Total calories
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What % of calories came from fat in the cherry pie?
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Chapter 1 - FUNDAMENTALS OF NUTRITION Introductions Course...

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