Final Review - Exam 3 and Final Review December 4, 2007...

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Exam 3 and Final Review December 4, 2007 Chapter 1 Epidemiological Research Studies of populations – correlations between habits and disease (Inuits and fish) Intervention Studies (Clinical Studies): researchers actively intervene in one group of the population (exp. Group) and compare to a group that does not recive the intervention (control group) Ex: Double Blind Neither the subjects nor the researchers know to which group the member belong until the end of the exp. Lab Studies: studies performed under controlled situations Research article contents Abstract (overview), Introduction (purpose statement), Review of Literature (discusses research already done on the topic), Methodology (defines key terms and discusses procedures), Results (reports findings), Conclusions, References (citations used from other articles) Macronutrients CHO 4cal/g Fat 9cal/g Protein 4cal/g Alcohol Not a nutrient 7cal/g Calculations Product has 180 calories, 5 grams of fat. What is the percent of calories coming from fat? 1. How many calories come from fat? 5g fat X 9cal/g = 45cal 2. Finding percentage 45cal/180cal = 2.5 x 100 = 25% Nutrient Density Examples Foods rich in nutrients relative to their energy content (calories) Lower calories, higher nutrient content = nutrient dense 1
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Chapter 2 – Guidelines and Recommendations DRI and RDA Set of 4 lists of values for measuring the nutrient intakes of health people in U.S. Who are these recommendations for? Healthy people US Dietary Guidelines What are these? Science based advice to promote health and reduce risk through diet and physical activity – based upon USDA Food Guide (My Pyramid) Do these guidelines apply to all eating styles? It covers vegetarian and meat eating styles of eating. Chapter 3 - Body Constipation Water, fiber, Physical Activity Respond to body signal Diarrhea Pulls water and electrolytes from the system Causes are food borne illness and a change in diet Dehydration Water loss – many causes, can cause serious problems even death if not corrected Often a problem of the elderly due to imprecise thirst mechanism Chapter 4 - Carbohydrate Simple and Complex Mono (Fructose, glucose, lactose) and Disaccharides: Simple Polysaccharides: Complex (Starches and Glycogen) Fiber (undigestable) Storage form Glycogen within animals Stored in the muscle and liver (released as glucose) High Fructose Corn Syrup – corn subsidies Highest subsidized crop Chapter 5 - Fat Digestion In the stomach the fat separates Bile from gall bladder emulsifies the fat allowing enzymes to break it down in the small intestine Slow process – the higher the fat content of the meal, the slower the digestive action is Fats and CVD Sources of Omega 3 Fish, seeds (flax seed), and nuts Saturated/trans/ -- Increases heart disease risk – hard at room temp Cocunut oil for example Unsaturated – reduces heart disease risk – liquid at room temp 2
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This note was uploaded on 03/19/2008 for the course HNF 150 taught by Professor Thurston during the Spring '07 term at Michigan State University.

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Final Review - Exam 3 and Final Review December 4, 2007...

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