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Vocabulary on page 192 In one of the boxes, list 3 reasons why nutrition is important to your health (Calculator once you are finished) Essay: Evaluate your current eating habits. What are you doing well? What could you do better? How could this contribute to your long term health? 7 sentences BMI handout, Skinfold, and Calculator Fitness pal project
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Growth and Development Optimal Performance Energy Prevention of sickness and disease Body Composition
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Hunger: a natural physical drive that protects you from starvation Appetite: a desire rather than a need to eat Emotions Family Friends Advertising Cost Location Culture http://www.youtube.com/watch?v=cJRpXYs1pQA
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Metabolism: the chemical process by which your body breaks down food to release energy (what can raise or lower this?) Calories: Measurement of the amount of energy released when nutrients are broken down. The more energy a food has, the more calories it has Page 193- Which would you rather?
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Lesson Essential Question: What are the six groups of nutrients? Nutrients: the substances in food that your body needs to grow, to repair itself, and to supply you with energy Can you name any of the six groups?
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Carbohydrates: nutrients made of carbon, hydrogen, and oxygen that supply energy for bodily functions Body’s preferred source of energy 4 calories per gram Simple and Complex Simple (sugars such as fructose or lactose, found naturally in fruit or added in foods such as candy bars) Complex (Made up of sugars that are linked together chemically to form long chains) Starches are one of the main types of carbohydrates (such as potatoes/grains/many plant foods) Body must break down complex carbohydrates into simple carbs before it can use them
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Converted into glucose (simple sugar that is the main source of the body’s energy) Glucose not used away is stored in your body and muscles as glycogen. It is converted back to glucose when more energy is needed. If you take in more carbs then your body can use or store as glycogen, then body converts and stores excess carbs as fat
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Proteins: nutrients that help build and maintain body cells and tissues (growth and repair of body tissues) Made up of long chains of amino acids The body breaks up these amino acids and reforms them into desired proteins Body can manufacture up to 11 out of the 20 different amino acids that make up proteins. Essential amino acids: the 9 amino acids that your body can’t make (must get them from food you eat) Complete proteins: Contain adequate amounts of all nine essential acids (egg, milk, cheese, fish) Incomplete proteins: lack one or more of the essential amino acids (beans, peas, nuts) Muscle fiber explanation/tornado example
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Fats: oily substance found in food that doesn’t dissolve in water (also made of carbon, hydrogen, and oxygen but different proportions) Supply body with energy, form cells, maintain body temperature, protect nerves, necessary for growth and healthy skin Provide more than twice the energy of proteins or carbs (9 calories per gram) Add flavor and texture to foods No more than 20-30 percent of caloric intake
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Saturated: usually solid at room temperature and hold all the hydrogen atoms that it possibly can Unsatruated: Usually liquid at room temperature and have at least one place where hydrogen can be added to the molecule Transfat: Making unsaturated fats into saturated fats through hydrogenation No nutritional value, increases LDL and decreases HDL, increases risk of heart disease (increases shelf life and is in commercial food products) Should we ban it like Denmark, Australia, Switzerland?
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Help the body with essential functions and assist in many chemical reactions Made by living things They do not provide you with a direct source of energy Two classes (fat soluble and water soluble) depends on what the vitamin dissolves in Fat soluble vitamins can be stored by the body Water soluble vitamins can not, so it’s important to eat them everyday
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Occur naturally in rocks and soil Essential for bodily processes and function Calcium, Phosphorus, Magnesium, Sodium, Chlorine, Potassium are all examples of minerals
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About 65% of your body weight is water Not a main energy source but it is ESSENTIAL for all life processes including the production of energy Primary component of blood and tissue Carries waste products out of the body Helps digest food Keeps body strong
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WomanMen 10-12%2-4% Athletes 14-20%6-13% Fitness 21-24%14-17% Acceptable 25-31%18-25% Obese 32% plus26% plus
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