Nutrition ch 1&2

Nutrition ch 1&2 - Chapter 1 What is Nutrition...

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Chapter 1: What is Nutrition? Nutrition a science that studies the nutrients and non-nutrients in foods and what they do in the body how it effects certain diseases Nutrients : compounds in food that help us to live and sustain health Non-nutrients : not vital to sustain life existence Phytochemicals : non-nutrients that is not needed in our diet but may reduce risk of a disease o Example: Lycopene: found in tomatoes and reduces the risk of prostate cancer Leading causes of death in the United States Heart Disease Cancer Stroke Diabetes Alzheimer’s Essential Nutrients Macronutrients : need greater than 5 grams a day o Carbohydrates: provide 4 calories per gram o Lipids: provide 9 calories per gram o Proteins: provide 4 calories per gram Micronutrients o Vitamins o Minerals o Water: most important nutrient Calculations If a chicken breast has 22 grams of protein, how many calories from protein is coming from the chicken? o 22g × 4 cal = 88 cal/g If a whopper has 19 grams of fat, how many calories from fat is coming from the whopper? o 19g × 9 cal = 88 cal/g Why We Choose the Food We Eat Taste Cultural reasons Social situations Emotions Advertisements
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Organic versus Inorganic Compounds Organic: compound made with carbon and an energy yielding nutrient Inorganic: does not contain carbon like water More than 60% of adults in the US are overweight Energy yielding nutrients : Must provide calories such as your macronutrients. Micronutrients are not energy yielding nutrients because they don’t have calories. Alcohol is an energy yielding nutrient and it provides 7 calories per gram What is a healthy diet? 1. Adequacy: provide enough of the nutrients that you need 2. Variety: need variety to get the phytochemicals (non-nutrients) that we need 3. Moderation: portion control 4. Balance: don’t over consume one nutrient at the expense of another 5. Exercise 6. Calorie control: make sure your caloric intake matches your caloric output Healthy People 2010 28 focus areas related to everything about health across the board
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Nutrition ch 1&2 - Chapter 1 What is Nutrition...

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