Podcast
Questions and Answers
What are the two fundamental components of a diet that must be present?
What are the two fundamental components of a diet that must be present?
Appropriate calorie level and appropriate nutrient levels to prevent nutrient deficiency or toxicity.
What are the categories used in the Food Guide Pyramid?
What are the categories used in the Food Guide Pyramid?
Grains, vegetables, fruits, milk, meat, and beans.
What does DRI stand for and what is it for?
What does DRI stand for and what is it for?
Dietary Reference Intake, for nutrients.
What are macronutrients?
What are macronutrients?
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What are proteins made of and what is it for? How many kcal are proteins?
What are proteins made of and what is it for? How many kcal are proteins?
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What are high quality proteins?
What are high quality proteins?
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What are low quality proteins?
What are low quality proteins?
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What are complementary proteins and an example of one?
What are complementary proteins and an example of one?
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What is the daily protein requirement for adult men and women and athletes?
What is the daily protein requirement for adult men and women and athletes?
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What are the purpose of carbs and what is their kilocalorie?
What are the purpose of carbs and what is their kilocalorie?
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What is glycemic index (GI)?
What is glycemic index (GI)?
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What categorizes a food that has a high GI?
What categorizes a food that has a high GI?
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What categorizes a food that has a low GI?
What categorizes a food that has a low GI?
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What is the DRI for fiber for men and women?
What is the DRI for fiber for men and women?
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What is the total percent of carbs one should have in regards to caloric intake?
What is the total percent of carbs one should have in regards to caloric intake?
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Athletes who train for a long duration (90 minutes or longer) should consume how many carbs in regard to body weight?
Athletes who train for a long duration (90 minutes or longer) should consume how many carbs in regard to body weight?
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What is ketosis and how many carbs should you have a day to prevent this?
What is ketosis and how many carbs should you have a day to prevent this?
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What are examples of lipids?
What are examples of lipids?
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What is the good kind of cholesterol and what is desirable cholesterol?
What is the good kind of cholesterol and what is desirable cholesterol?
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How much percent fat should someone have in regards to caloric intake?
How much percent fat should someone have in regards to caloric intake?
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What fat increases the risk of atherosclerosis the most?
What fat increases the risk of atherosclerosis the most?
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What is fat phobia?
What is fat phobia?
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What are three reasons to decrease dietary fat?
What are three reasons to decrease dietary fat?
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What is a micronutrient?
What is a micronutrient?
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What is Vitamin A?
What is Vitamin A?
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What is Beta carotene?
What is Beta carotene?
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What is Vitamin D?
What is Vitamin D?
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What is Vitamin E?
What is Vitamin E?
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What is Vitamin K?
What is Vitamin K?
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What is Vitamin C?
What is Vitamin C?
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What is Iron?
What is Iron?
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How much % water is someone's body weight?
How much % water is someone's body weight?
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What is the average fluid intake for adults and athletes?
What is the average fluid intake for adults and athletes?
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What temperature should the beverage be at and how long should an athlete drink prior to an event?
What temperature should the beverage be at and how long should an athlete drink prior to an event?
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What are some signs of anorexia nervosa?
What are some signs of anorexia nervosa?
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What is the best way to record hydration status and how much fluid should be restored for full hydration?
What is the best way to record hydration status and how much fluid should be restored for full hydration?
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Fluid loss equal to as little as ____% of total body weight can be associated with an elevation in core temperature during exercise.
Fluid loss equal to as little as ____% of total body weight can be associated with an elevation in core temperature during exercise.
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How much % fluid loss causes cardiovascular strain and impaired ability to dissipate heat and when does a person collapse?
How much % fluid loss causes cardiovascular strain and impaired ability to dissipate heat and when does a person collapse?
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What is the major electrolyte lost during sweating?
What is the major electrolyte lost during sweating?
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How much and how long before an event should an athlete consume water?
How much and how long before an event should an athlete consume water?
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What is carb loading?
What is carb loading?
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How many extra kilocalories are required to gain one pound?
How many extra kilocalories are required to gain one pound?
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When is carb consumption necessary during activity and what is the ideal concentration?
When is carb consumption necessary during activity and what is the ideal concentration?
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How many kilocalories less are required to lose one pound?
How many kilocalories less are required to lose one pound?
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What should you do for an eating disorder?
What should you do for an eating disorder?
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What are the levels and categories for BMI?
What are the levels and categories for BMI?
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How do you calculate BMI?
How do you calculate BMI?
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What does someone need to have to be diagnosed with Bulimia nervosa?
What does someone need to have to be diagnosed with Bulimia nervosa?
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Study Notes
Fundamental Diet Components
- Diet must include appropriate calorie levels to ensure energy needs are met.
- Nutrient levels should be sufficient to prevent deficiencies or toxicities in the body.
Food Guide Pyramid Categories
- Primary categories include grains, vegetables, fruits, milk, and meat & beans.
Dietary Reference Intakes (DRI)
- DRI stands for Dietary Reference Intake, which provides guidance on nutrient levels for health.
Macronutrients
- Macronutrients include carbohydrates, proteins, and lipids, needed in significant dietary amounts.
Proteins
- Composed of amino acids, proteins support growth and tissue maintenance, providing 4 kcal/g.
High-Quality Proteins
- Contain amino acid patterns similar to human needs, sourced from animal products like meat, fish, eggs, and dairy.
Low-Quality Proteins
- Deficient in one or more essential amino acids, often found in grains, beans, vegetables, and gelatin.
Complementary Proteins
- These proteins supply different amino acids, beneficial for vegans. Examples include beans with rice and corn with beans.
Protein Requirements
- Adult men require 0.8 g/kg, women need the same, and athletes may need 1.5-2.0 g/kg of body weight for optimal intake.
Carbohydrates
- Serve as an energy source, categorized into monosaccharides, disaccharides, and polysaccharides, providing 4 kcal/g.
Glycemic Index (GI)
- Measures how foods affect blood glucose levels; foods that digest quickly have a high GI (e.g., white bread = 100).
High GI Foods
- Characterized by rapid digestion and significant increases in blood glucose levels; rice cakes are an example (GI=117).
Low GI Foods
- Digests slowly, leading to gradual glucose increases; peanuts have a low GI (GI=21).
Fiber Recommendations
- Daily recommended intake: men 38 g, women 25 g.
Carbohydrate Intake
- Should constitute 50-55% of total caloric intake.
Carbohydrate Needs for Athletes
- Endurance athletes should consume 8-10 g/kg of body weight daily.
Ketosis
- Occurs when ketone levels in the bloodstream are elevated; 50-100 grams of carbohydrates daily can prevent it.
Lipids
- Includes triglycerides, fatty acids, phospholipids, and cholesterol.
Cholesterol Information
- HDL (good cholesterol) protects against heart disease; desirable cholesterol levels are considered below 200 mg/dL.
Fat Intake Recommendations
- Fat should account for 30% or less of total caloric intake, with sources comprising 20% from monounsaturated and polyunsaturated fats.
Trans Fats
- Known to significantly increase the risk of atherosclerosis.
Fat Phobia
- Refers to the fear of consuming dietary fats.
Reasons to Decrease Dietary Fat
- Increased carbohydrate intake for training, reduction of total caloric intake, and lowering elevated cholesterol are key factors.
Micronutrients
- Required in small amounts, includes vitamins and minerals.
Specific Vitamins
- Vitamin A promotes growth and tissue repair; Beta carotene acts as an antioxidant; Vitamin D aids calcium absorption; Vitamin E supports normal growth; Vitamin K is important for blood clotting; Vitamin C aids in wound healing.
Iron
- Critical for red blood cell function and oxygen transport; sources include red meat and dark leafy greens.
Body Water Composition
- The human body consists of 45-70% water.
Fluid Intake Guidelines
- Average fluid intake ranges from 2 to 2.7 quarts (1.9-2.6 liters); athletes may require 3 to 4 gallons more if sweating profusely.
Beverage Temperature Before Events
- Recommended drinking temperature is 50-70 degrees F with 16 fluid ounces consumed two hours before an event.
Signs of Anorexia Nervosa
- Indicators include significant weight loss without cause, preoccupation with food and weight, and weight below 85% of normal.
Hydration Status Assessment
- Record pre- and post-workout body weights; rehydrate with 0.5 liters for each pound lost.
Fluid Loss and Health Risks
- 1% fluid loss can elevate core temperature; cardiovascular strain occurs with 3-5% loss, with potential collapse at 7%.
Major Electrolytes Lost in Sweat
- Sodium chloride is primarily lost, followed by potassium.
Pre-Event Hydration Recommendations
- Drink 16 fluid ounces two hours prior, followed by 6-8 fluid ounces every 15 minutes during activity.
Carb Loading
- A strategy to enhance muscle glycogen levels by consuming up to 600 grams of carbs daily leading to an event.
Caloric Surplus for Weight Gain
- An extra 2,500 kcal per week is necessary to gain one pound; a daily surplus of 350-700 kcal is recommended.
Carb Recommendations During Activity
- Necessary for events lasting over one hour, with an ideal concentration of 6-8%.
Caloric Deficit for Weight Loss
- A deficit of 3,500 kcal weekly is required to lose one pound, equating to reducing daily intake by 500-1,000 kcal.
Addressing Eating Disorders
- Always refer affected individuals to a professional for help.
Body Mass Index (BMI) Categories
- Underweight is defined as a BMI of 40 or lower.
BMI Calculation
- BMI can be calculated using weight in pounds divided by height in inches squared multiplied by 703 or weight in kilograms divided by height in meters squared.
Bulimia Nervosa Diagnosis Criteria
- Characterized by binge-eating followed by compensatory purging behaviors at least once a week for three months.
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Description
Test your knowledge on key concepts of nutrition with these flashcards covering the fundamental components of a diet and the categories of the Food Guide Pyramid. Each card presents a question that encourages critical thinking about dietary practices and nutrient intake. Perfect for students looking to reinforce their understanding of nutritional science.