Nutrition Chapter 10 Flashcards
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Questions and Answers

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?

Grains, vegetables, fruits, milk, meat, and beans.

What does DRI stand for and what is it for?

Dietary Reference Intake, for nutrients.

What are macronutrients?

<p>Nutrients that are needed in significant amounts in the diet, such as carbs, proteins, and lipids.</p> Signup and view all the answers

What are proteins made of and what is it for? How many kcal are proteins?

<p>Proteins are made up of amino acids, used to support growth and tissue maintenance, and they provide 4 kcal/g.</p> Signup and view all the answers

What are high quality proteins?

<p>Proteins with an amino acid pattern similar to that needed by the body, such as animal origin proteins, eggs, meat, fish, poultry, and dairy products.</p> Signup and view all the answers

What are low quality proteins?

<p>Proteins that are deficient in one or more essential amino acids, such as grains, beans, vegetables, and gelatin.</p> Signup and view all the answers

What are complementary proteins and an example of one?

<p>Proteins that supply different amino acids; examples include beans and rice, corn and beans, and bread and peanut butter.</p> Signup and view all the answers

What is the daily protein requirement for adult men and women and athletes?

<p>0.8 g/kg of protein per body weight, and for athletes, 1.5-2.0 g/kg of body weight, assuming caloric intake and protein quality are adequate.</p> Signup and view all the answers

What are the purpose of carbs and what is their kilocalorie?

<p>They serve as an energy source, made up of monosaccharides, disaccharides, and polysaccharides, and provide 4 kcal/g.</p> Signup and view all the answers

What is glycemic index (GI)?

<p>How long and how high a food raises blood glucose.</p> Signup and view all the answers

What categorizes a food that has a high GI?

<p>Foods that digest quickly and raise blood glucose rapidly, such as rice cakes.</p> Signup and view all the answers

What categorizes a food that has a low GI?

<p>A food that digests longer and slowly increases blood glucose, such as peanuts.</p> Signup and view all the answers

What is the DRI for fiber for men and women?

<p>Men: 38 g/d, Women: 25 g/d.</p> Signup and view all the answers

What is the total percent of carbs one should have in regards to caloric intake?

<p>50 to 55%.</p> Signup and view all the answers

Athletes who train for a long duration (90 minutes or longer) should consume how many carbs in regard to body weight?

<p>8 to 10 kg per body weight a day.</p> Signup and view all the answers

What is ketosis and how many carbs should you have a day to prevent this?

<p>It is high levels of ketones in the bloodstream; should have 50 to 100 carbs a day.</p> Signup and view all the answers

What are examples of lipids?

<p>Triglycerides, fatty acids, phospholipids, and cholesterol.</p> Signup and view all the answers

What is the good kind of cholesterol and what is desirable cholesterol?

<p>HDL (high levels protect against heart disease); keep HDL higher than 60 and LDL lower than 100, with desirable cholesterol being less than 200.</p> Signup and view all the answers

How much percent fat should someone have in regards to caloric intake?

<p>30% or less of caloric intake, including 20% from monosaturated and polyunsaturated and 10% saturated fat.</p> Signup and view all the answers

What fat increases the risk of atherosclerosis the most?

<p>Trans fat.</p> Signup and view all the answers

What is fat phobia?

<p>Fear of eating fat.</p> Signup and view all the answers

What are three reasons to decrease dietary fat?

<p>Need to increase carb intake to support training type, need to reduce total caloric intake, need to decrease elevated cholesterol.</p> Signup and view all the answers

What is a micronutrient?

<p>A nutrient that is required in small amounts in the diet, such as minerals and vitamins.</p> Signup and view all the answers

What is Vitamin A?

<p>Promotes growth and repair of body tissues, found in liver, milk, and butter.</p> Signup and view all the answers

What is Beta carotene?

<p>An antioxidant found in vegetables.</p> Signup and view all the answers

What is Vitamin D?

<p>Aids in absorption of calcium, found in fish oils.</p> Signup and view all the answers

What is Vitamin E?

<p>An antioxidant that supports normal growth and development, found in oils.</p> Signup and view all the answers

What is Vitamin K?

<p>Involved in blood clotting, found in vegetables.</p> Signup and view all the answers

What is Vitamin C?

<p>Supports wound healing and resisting infection, found in vegetables.</p> Signup and view all the answers

What is Iron?

<p>Necessary for red blood cell function and formation, plays a role in oxygen transport and utilization of energy.</p> Signup and view all the answers

How much % water is someone's body weight?

<p>45 to 70%.</p> Signup and view all the answers

What is the average fluid intake for adults and athletes?

<p>2 to 2.7 quarts or 1.9-2.6 liters, athletes who sweat profusely need possibly 3 to 4 gallons more.</p> Signup and view all the answers

What temperature should the beverage be at and how long should an athlete drink prior to an event?

<p>Should be at 50 to 70 degrees and an athlete should drink 0.5 L or one pint or 16 ounces of fluid.</p> Signup and view all the answers

What are some signs of anorexia nervosa?

<p>Recurring questions about weight, dramatic weight loss for no reason, continuing to lose weight for no reason, preoccupation with food, calories, and weight, less than 85% of body weight.</p> Signup and view all the answers

What is the best way to record hydration status and how much fluid should be restored for full hydration?

<p>Record athlete's body weights immediately before and after a workout. For each pound lost during practice, 0.5 L should be consumed.</p> Signup and view all the answers

Fluid loss equal to as little as ____% of total body weight can be associated with an elevation in core temperature during exercise.

<p>1</p> Signup and view all the answers

How much % fluid loss causes cardiovascular strain and impaired ability to dissipate heat and when does a person collapse?

<p>3 to 5% causes strain, and a person may collapse at 7%.</p> Signup and view all the answers

What is the major electrolyte lost during sweating?

<p>Sodium chloride, then potassium.</p> Signup and view all the answers

How much and how long before an event should an athlete consume water?

<p>2 hours before, 16 fluid ounces, and then 6 to 8 fluid ounces every 15 minutes.</p> Signup and view all the answers

What is carb loading?

<p>Used to enhance muscle glycogen prior to long-term aerobic endurance exercise, may start by consuming 600 carbs a day a week before performance, and must also taper activity as well.</p> Signup and view all the answers

How many extra kilocalories are required to gain one pound?

<p>2,500 extra per week to gain one pound, around 350-700 per day.</p> Signup and view all the answers

When is carb consumption necessary during activity and what is the ideal concentration?

<p>Any event that lasts longer than one hour and an ideal concentration of 6 to 8%.</p> Signup and view all the answers

How many kilocalories less are required to lose one pound?

<p>A deficit of 3,500 kcal per week, so approximately 500 to 1,000 less a day.</p> Signup and view all the answers

What should you do for an eating disorder?

<p>Always refer to a professional.</p> Signup and view all the answers

What are the levels and categories for BMI?

<p>Underweight: 40.</p> Signup and view all the answers

How do you calculate BMI?

<p>Weight (pounds)/ height (in)^2 x 703 or weight (kg)/ height (meters)^2.</p> Signup and view all the answers

What does someone need to have to be diagnosed with Bulimia nervosa?

<p>Binge-eating sessions followed by compensatory behavior (purging) each week for at least 3 months.</p> Signup and view all the answers

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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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.

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