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Nutrition overview for midterm

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Question
Answer
show The study of foods, their nutrients and other chemical constituents,and the effect of food constituents on human health  
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show 1-food is basic need of all humans 2-Foods provide E Nutrients,Other biologically active substances 3-Health problems related to nutrition originate within cells 4-“malnutrition” can result from both inadequate and excessive levels of nutrient intake  
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show access at all times to a sufficient supply of safe, nutritious foods for an active, healthful life  
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Define Food Insecurity   show
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What is a calorie?   show
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What is a nutrient?   show
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show Fats Carbohydrates Protein Vitamins Minerals Water  
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What are carbohydrates?   show
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What are proteins?   show
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show Saturated, unsaturated, essential fatty acids, cholesterol  
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show 14  
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How many minerals?   show
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What are the energy nutrients?   show
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What is the main function of water, minerals, and vitamins?   show
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show major type of biologically active substance found in the body but not considered a nutrient  
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show nutrient that must be supplied by the diet because the body cannot make sufficient amounts for survival  
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What is a non-essential nutrient?   show
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Does everyone need the same amount of nutrients?   show
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show Dietary Reference Intakes Recommended daily levels of intake that not only meet the nutrient needs of almost all healthy people (97-98%), but also promote health and help reduce the risk of chronic disease. Developed by US and Canada  
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What are Tolerable upper intake levels?   show
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show When the cell's need for nutrients differs from the amount supplied  
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show develops after a period of insufficient intake of an essential nutrient when tissue reserves of the nutrient become depleted  
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show limited. Such as ability to excrete excess or store in fat  
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Malnutrition is caused by x, y, z/   show
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Some groups are at a higher risk for being inadequately nourished than others. Name some   show
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show Yes! heart disease, hypertension, cancer, osteoporosis, and other chronic diseases. high in saturated/trans fat- heart disease Diets low in vegetables and fruits are related to cancer. Low-calcium- osteoporosis. High-sugar-tooth decay  
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What are the 3 characteristics for a healthy diet?   show
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show Foods that provide multiple nutrients in appreciable amounts relative to calories  
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show Foods that provide higher levels of calories relative to nutrient content  
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Are there good or bad foods?   show
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T/F: All of our body's cells/tissues are in a constant state of renewal>   show
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All cellular maintenance activities are X dependent   show
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show nutrients  
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show Digestion and absorption  
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show secretions break down food into absorbable pieces vitamins and minerals are released!  
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How long is the digestive tract?   show
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Define ingestion   show
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show foods are broken down into smaller and smaller units to prepare nutrients for absorption  
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show Chemical- breaks molecules apart via digestive secretions, gastric juices, and enzymes Mechanical- physically breaks large chunks down  
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show the process by which the nutrients and other substances enter the circulatory or lymphatic system  
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Define excretion   show
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Define motility. What are the 2 types?   show
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Digestion is facilitated by _______ manufactured in the digestive system.   show
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What secretes enzymes?   show
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show complex proteins that speed up reactions and break down foods, not changed by chemical rxns they affect=reusable  
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show amylase (starch) protease/pepsin (proteins) lipase (fats)  
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show chewing causes saliva to be released. saliva lubricates food to be swallowed saliva contains amylase and lipase Amylase starts breaking down starch lipase begins to break down fats  
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show transports food from the mouth to the stomach, NO digestion/absorption occurs  
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What does the stomach do?   show
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show Villi help to increase digestion/absorption of nutrients. available SA is about the size of a BASEBALL FIELD!  
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show The small intestine  
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Digestion is ________ in the small intestine.   show
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show The large intestine  
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What is the large intestine like? What is its function?   show
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Define absorption.   show
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show breakdown products of fat digestion  
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show carbohydrate and protein products  
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Define metabolism.   show
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What causes heartburn/gastro esophogeal reflux?   show
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What is constipation?   show
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What is diarrhea? What causes it?   show
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What is vomiting/ reverse peristalsis?   show
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What is intestinal gas/flatulence?   show
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What causes lactose maldigestion?   show
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What makes up protein?   show
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Proteins are ________ compounds made of ______.   show
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What distinguishes proteins from carbs, fats?   show
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How many common amino acids are there to make proteins in the human body? How many essential? Non essential?   show
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show 1. Integral structural component muscle, bone connective tissues organs red blood cells hemoglobin hair, & nails makes up enzymes & hormones in body Growth, maintenance & repair of protein-containing structures energy source  
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What is the recommended range of total calories for protein? How many grams?   show
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What is the recommended range of total calories for carbohydrates? How many grams?   show
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show 20-35% 44-78 g  
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How much protein comes from meat, milk and animal products in the us?   show
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Where does the absorption of protein occur?   show
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What has to be removed in order to use protein for energy? What happens to this substance? What does this mean for the body?   show
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show a polypeptide can fold into complex shapes  
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What role does DNA play in protein synthesis?   show
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What is the denaturation of proteins? How can you do this in foods?   show
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DIetary protein quality varies based on...   show
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Can individual amino acids be stored in the body? What happens if one or more AA is missing?   show
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What is a complete protein?   show
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show it is deficient in one or more essential AA  
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show beans, lentils, grains  
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show high fat and low fiber  
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show beans & grains mixed with lean meats & low-fat dairy products  
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show Iron, Zinc, Niacin, B12  
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show lower strength for breathing, higher susceptibility for infection, abnormal organ functions, and death  
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What causes Kwashiorkor? How does this likely develop? What do these people look like?   show
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show insufficient calories and protein, aka protein-E malnutrition, skin and bones  
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show anorexia nervosa & diseases causing cachexia, Infection, diarrhea, and dehydration  
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How much protein is too high? What can this cause? What is it called when you have excessive protein intake relative to carbohydrate and fat?   show
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High protein diets have been implicated in these as well.   show
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show High intakes of individual amino acid supplements can harm health by disrupting protein synthesis Amino acid supplements: May cause loss of appetite, diarrhea, & GI upsets Increase workload of liver and kidneys, & likelihood of dehydration  
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What about AA and protein powder to build muscle? And for athletes?   show
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Where do most carbohydrates come from?   show
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How are carbohydrates made?   show
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show C, H, O  
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How many calories/g do carbohydrates have?   show
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show Sparing protein, dietary fiber, sweetening agent  
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What are the 3 types of carbohydrates?   show
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show Monosaccharides and disaccharides  
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show Fructose Glucose Galactose  
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What is a disaccharide? What are the 3 kinds?   show
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How can glucose be used in the body?   show
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show controlling blood glucose levels, required for glucose uptake into cells enhances conversion of excess glucose to glycogen (glycogenesis) enhances storage of excess glucose to fat in adipose tissue  
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What is the glycemic index?   show
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show High- Glucose, white bread, baked potatoes, jelly beans Low-Fructose, xylitol, hummus, apples, all-bran cereal  
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show soft drinks  
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Food sugars are chemically similar/dissimilar? How many calories/g? Other nutrients?   show
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show Less than 10% of total calorie intake is good  
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show simple sugar foods=poor source of nutrients, only calories can also be high in fat more sugar indicates lower vitamins and minerals tooth decay  
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show Sugar and tooth decay/dental caries (disintegration of teeth due to acids produced by bacteria in the mouth that feed on sugar) related to: exposure time important variable “stickier” sweets more apt to promote decay  
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What contributes to tooth decay?   show
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show Infants who fall asleep with a bottle (sugar water, milk, or formula) may develop severe decay  
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show contain 4 calories per gram reduced absorption causes less dental caries may cause gas or diarrhea  
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What is aspartame? Teeth? Can you cook with it?   show
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show Sweet n' Low 100+ years  
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What is sucralose? Can you cook with it? Teeth?   show
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What are the 2 simple carbohydrate?   show
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show polysaccharides  
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Do people get enough fiber? How can you get enough? Do cooked foods have less fiber? Fast food?   show
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show Nope  
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What are the 3 fiber classifications?   show
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show Insoluble: full-feeling, help control post-meal glucose rises, prevent constipation Soluble: decrease fat/cholesterol absorption  
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What are the benefits of fiber?   show
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How much fiber do you need?   show
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Does soluble fiber chemically combine with water? What are some examples?   show
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Does insoluble fiber chemically combine with water? What are some examples?   show
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What is diabetes?   show
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What are the 3 types of diabetes?   show
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show blurred vision, frequent urination, weight loss, infection, delayed wound healing, hunger/thirst, fatigue  
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Long term effects of diabetes: Number 1 killer of diabetics?   show
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What is pre-diabetes? What are some risk factors?   show
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How can you prevent/delay the onset of type 2 diabetes?   show
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show a hormone produced by the pancreas: Functions to lower blood glucose levels Facilitates passage of glucose into cells Enhances storage of glucose as glycogen in liver/muscle cells Enhances storage of excess glucose as fat in adipose tissue  
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What is insulin resistance? WHat contributes to it?   show
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Who gets type 2 diabetes?   show
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show Weight loss alone improves Blood Glucose control (5-10%) Proper diet crucial Regular exercise program (150+minutes/wk) Medications/insulin if needed  
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show autoimmune disease that results in an inability to produce insulin Type 1 diabetes requires insulin injections  
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How can you manage type 1 diabetes?   show
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What is hypoglycemia? What are some symptoms? How often does it occur?   show
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How many calories per/g of fat?   show
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What do fats carry?   show
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show Raise blood cholesterol  
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What does excessive fat intake promote?   show
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When you have more than 30% of calories coming from fat, what type of foods should you eat?   show
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Are fats soluble/insoluble in water?   show
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What are the 3 lipid groups?   show
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What is the structure of a triglyceride? What are the 2 essential fatty acids? They are ____ soluble?   show
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What are the 4 fat soluble vitamins?   show
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show fats absorb and retain flavor Fats contribute to fullness fats stay in stomach longer are absorbed over a longer period of time  
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What do fats do for cell membranes?   show
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Fat is stored in the body as ---------- for ______. How many calories per pound?   show
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show adipose tissue  
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show cushion the kidneys and heart protects and insulates the organs for temperature regulateion  
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show C molecules have as much H as possible Solid at room temperature  
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show C molecules don't have as much H Liquid at room temperature Plant foods are the source  
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What does it mean to be monounsaturated? Poly unsaturated?   show
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What is linoleic acid?   show
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What is linolenic acid? What foods is it in?   show
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show decreases risk of heart attack, irregular heart beat, sudden death decreases plaque formation in arteries lowers high blood pressure decreases the risk of stroke  
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show makes unsaturated fats more solid and stable can improve taste and texture structure of fat changed from a naturally occurring “cis” to a “trans” configuration present in many margarines, shortenings, and processed foods  
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What are trans fatty acids? Where can you find them?   show
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When did the FDA require that the Nutrition Fact Panel list trans fat?   show
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show Animal Foods  
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Where does cholesterol come from?   show
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Is cholesterol essential? WHy?   show
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show Every cell of your body building block for estrogen/testosterone and Vit D Major component of nerves and brain  
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Can cholesterol be used for energy?   show
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show Imitate taste, texture, and cooking properties of fats with fewer calories When used in food products reduces total fat content of food item/overall diet  
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What is Olestra/Olean? What does it mean for calories? Is it heat stable? Does the body absorb it?   show
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What diseases do fat contribute to?   show
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show : smoking, sedentary lifestyle, stress, diabetes, elevated cholesterol, hypertension, obesity (central adiposity) Unmodifiable: age, family history, gender (male)  
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show HDL- good cholesterol LDL- bad cholesterol  
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What is LDL? What disease is high levels associated with?   show
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show Associated with reduced risk for heart disease Plays a role in transporting cholesterol away from arterial walls  
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Intake of trans/sat fats should be high/low?   show
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show Eat more fish  
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What is a good cholesterol intake per day?   show
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show chemicals in food required in small amounts for normal growth and health, chemical substances that have specific metabolic functions  
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Do vitamins provide energy or serve as components of body tissues?   show
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What do adequate vitamin intakes protect people against?   show
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Every vitamin has a range of intakes where it functions best. T/F   show
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show Impairs the body's functioning  
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What is the best strategy for boosting your vitamin intake?   show
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How many vitamins are there so far?   show
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How can you classify vitamins?   show
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What is the primary function of vitamins?   show
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What is a co-enzyme?   show
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show Yes because all are vital to health and the body cannot produce enough of them  
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show A, E, D, K  
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Because fat soluble vitamins are not soluble in water, they require what for digestion?   show
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show in fatty tissues and the liver  
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Can you get too many fat soluble vitamins? What happens?   show
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show serve structural and regulatory processes in the body  
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Does it take longer for fat soluble or water soluble vitamin deficiencies to develop?   show
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What vitamins are water-soluble?   show
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What is the primary function of water-soluble vitamins?   show
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How do water soluble vitamins travel in the body?   show
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show through the kidneys in urination  
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show a small amount  
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show pregnancy, lactation, growth, fevers, injury, surgery, and alcoholism  
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How long does it take for a water soluble vitamin deficiency to develop?   show
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show eyesight, night vision, integrity in epithelial cells, immune system, bone health  
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show A- Animal foods, b-carotene-Brightly colored orange, yellow, and green vegetables/fruits, fortified skim milk.  
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show synthesized by sunlight precursor sterols, Fortified milk  
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show bone growth helps maintain Calcium levels  
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show Rickets, and osteomalacia  
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What is the main function of vitamin E? What disease can it help prevent?   show
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show not often  
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show plants, most from nut and seed oils  
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What is the main function of vitamin K?   show
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What can a vit. K deficiency lead to?   show
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show Dark green leafy vegetables (spinach) and liver Produced by bacteria in the intestines  
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What are your 10 water soluble vitamins?   show
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show energy metabolism  
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What disease does Thiamin deficiency lead to?   show
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What is the main function of Riboflavin?   show
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show Not any reported  
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show Milk, it's destroyed by ultraviolet light  
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What are the main functions of niacin?   show
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What is the deficiency disease associated with niacin?   show
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What are the main sources of niacin?   show
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show new cell synthesis  
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show Megalobolastic anemia  
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What are some sources of folate?   show
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What is the purpose of folate during pregnancy? How much do you need>   show
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show abnormalities of spinal cord and brain most common birth defect  
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What is the function of vitamin B12?   show
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show Vegans, elderly, gastric bypass patients  
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show Animal foods only  
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What is another name for Vitamin B6?   show
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What is the function of pyridoxine?   show
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Who is at risk for deficiency?   show
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show energy metabolism  
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show 1999  
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show transport and metabolism of lipids  
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What are the functions of vitamin C?   show
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What does vitamin C deficiency lead to?   show
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where can you get vitamin C?   show
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Who should consider supplementation?   show
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show Individuals with limited milk intake and/or sun exposure (calcium, D) > 70 years of age (calcium, D, B6, B12, zinc) Some infants Vitamin D (breastfed infants), fluoride, iron  
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show less than 100%  
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What vitamins serve as antioxidants?   show
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What is the function of antioxidants?   show
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What is a precursor?   show
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What is a UL?   show
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show 15 and water  
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show hydration, temperature control, transport, & removal of waste products, medium for chemical reactions  
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show Water  
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What is the body's main source of fluoride?   show
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How much of an adult body is water by weight?   show
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How much water in: Blood, tissues, bone, fat cells?   show
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HOw much water do you need per day?   show
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What happens to the thirst sensation with age?   show
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show during illness, High-protein diets High fiber diets Alcohol consumption Working in hot, humid conditions Athletes  
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show check your weight before and after an activity  
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How much can strenuous activity increase your water needs by?   show
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How much water is in fruits/vegetables and meats?   show
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HOw much water do physically inactive people need?   show
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How much fluid is needed from liquids for men? Women?   show
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show 10 c  
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show nausea & dizziness lightheadedness & headache fast heart rate increased body temperature fatigue & impaired mental focus dry sticky mouth unable to produce tears dry skin low urine output; darker color  
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show kidney failure and even death  
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show low sodium levels in the blood caused by excess water levels  
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show marathon runners infants in conjunction with certain medications  
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How much of the earth's water is fresh water?   show
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show EPA  
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show Local water utilities  
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show Nope, no better than tap water, The FDA regulates  
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show Contains more minerals carbonates and sulfates  
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show naturally or filtered low in minerals  
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show 15  
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show food source & foods consumed concurrently  
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show allow them to combine to form stable compounds *bones teeth cartilage+  
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show stimulating muscle contraction & nerve impulse propagation help maintain adequate water balance in body assist in acid-base balance act as cofactors  
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show certain minerals are needed to activate certain proteins to complete enzymes  
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Can mineral charges be a problem?   show
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What is the function of the mineral K?   show
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show irregular heart beat  
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What are some common sources of K?   show
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What is the function of phosphorous?   show
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Where can you find phosphorous?   show
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show formation/maintenance of tooth enamel, prevents tooth decay  
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Where is fluoride found? Can filters remove it?   show
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show discoloration of teeth and bones  
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show growth, taste, smell, hearing, immune function, carbohydrate metabolism more than 200!!!  
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show Component of thyroid hormone that help regulate energy production & growth  
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show goiter, inland  
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show bone formation and osteoporosis prevention muscle contraction nerve signaling blood clotting  
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show process undergone by bones to repair and replace them bones replaced every decade  
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show first 30 years of life  
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show decreased osteoporosis risk  
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show adequate calcium and vitamin D  
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show increase calcium absorption  
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Where can you find calcium? How much do you need?   show
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1/2 of females in the US consume this much calcium a day?   show
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show Increased soft drink consumption  
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How many men/women are affected by osteoporosis?   show
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What are non changeable osteoporosis risk factors?   show
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What are some changeable osteoporosis risk factors?   show
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show yeppers  
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What is the main function of iron?   show
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What are the two forms of iron? Where do you find them? Which has a higher bioavailability?   show
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Where can you get iron from?   show
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What can improve iron absorption?   show
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show 1) Low levels of iron stores increases absorption 2) When iron stores high, less iron absorbed  
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show fatigue & weakness short attention span & irritability poor appetite increased susceptibility to infection  
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show paleness, exhaustion, rapid heart rates  
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What about excess iron?   show
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What is hemochromatosis?   show
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What was a major change in the 2010 Dietary Guidelines?   show
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show for heart disease, kidney failure, stroke, & myocardial infarction increase with age  
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What is normal blood pressure?   show
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How much hypertension has no direct cause? What are some risk factors?   show
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show Reduction in salt intake, weight loss, and physical activity improve blood pressure  
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What are the recommended sodium intakes?   show
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show 2400 mg  
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show Dietary Approach to Stop HTN (DASH) diet based on vegetables, fruits, low-fat dairy products, whole grains, poultry, & fish  
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show Don't add salt to foods; use spices and lemon juice instead Consume fresh/frozen fruits & vegetables no-salt-added canned foods Select low-sodium foods (check food label) Avoid high-salt processed foods including salad dressings, pickles, canned soup  
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show Nope, older people have lower sensitivity to salt  
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