Important stored energy source during rest or lower intensity exercise Source

Important stored energy source during rest or lower

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Important stored energy source during rest or lower intensity exercise Source of fat-soluble vitamins and essential fatty acids Energy: 9 kcal per gram Found in lard, butter, margarine, vegetable oils
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Macronutrients: Proteins Chains of amino acids Joined together by peptide bonds Main role is to build cells and tissues, not provide energy Important source of nitrogen Keeps you full longer(it takes longer to absorb and digest proteins) Found in antibodies, enzymes, muscle tissue, etc Energy: 4 kcal per gram Found in both plant (beans, nuts) and animal (meat, fish, dairy) foods
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Macronutrients: Calculating Energy Content of Diet PROBLEM 1 If Sally consumes 2000 kilocalories/day, and she gets 100 grams of proteins/day, what percentage of her kilocalories come from protein? Carbohydrates: 4____ kcal/gram Proteins: __4__ kcal/gram Fat: __9__ kcal/gram Step 1: 100 g protein x 4 kcal=400 kcal from protein Step 2: 400/2000=20%
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Macronutrients: Calculating Energy Content of Diet PROBLEM 2 If Jack eats 150 grams of protein, 300 grams of carbohydrate, and 75 grams of fat, how many kcals is he consuming? STEP ONE: Calculate kcal for each macronutrient STEP TWO: Add kcals from all nutrients together 600 kcal + 1200 kcal + 675 kcal = 2475 kcal total Protein 150 grams * 4 kcal/gram = 600 kcal Carbohydrate 300 grams * 4 kcal/gram = 1200 kcal Fat 75 grams * 9 kcal/gram = 675 kcal
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Macronutrients: Calculating Energy Content of Diet PROBLEM 3 19 g carb x 4__ kcal / g = 76___ kcal (from carb) 7 g fat x 9__ kcal / g = 63___ kcal (from fat) 2 g protein x 4__ kcal / g = 8___ kcal (from protein) 147___ kcal
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Butter is just about pure fat. About how many kilocalories does one pat of butter (10 g) have? a. 45 b. 50 c. 70 d. 90 e. 100 9 kilocalories per gram X 10 grams = 90 kilocalories
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Micronutrients: Vitamins Vitamins : Organic molecules do NOT supply energy Coenzyme – tissue building, immune system, vision Assist in energy metabolism Classifications: PAGE 11 Fat- soluble Water soluble Soluble in fat; stored in the human body Soluble in water; not stored to any extent in the human body A, D, E, K C, B- vitamins(thiamin, riboflaxin, niacin, vitamin b6, vitamin b12, pantothenic acid, biotin, folate
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Micronutrients: Minerals Minerals : Inorganic substances required for body processes Not destroyed by heat and light Examples: sodium, calcium, iron, potassium, and magnesium Functions: fluid regulation, bone structure, muscle movement, nerve functioning
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Micronutrients: Minerals PAGE 12 Calcium, phosphorus, sodium, Major minerals Trace minerals Needed in amounts greater than 100 mg/day in our diet
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Water Water is a critical nutrient for health and survival Inorganic Beverages and foods Water is involved in many body processes: fluid balance nutrient transport nerve impulses removal of wastes muscle contractions chemical reactions and many, many more…
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Part 4 Dietary Reference Intakes (DRIs)
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How much of each nutrient do we need?
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