Nutrition and Macronutrients Quiz
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Questions and Answers

What percentage of total calories comes from carbohydrates in the example meal containing 285 g of CHO, 55 g of fat, 70 g of protein, and 8 g of alcohol?

  • 28.5%
  • 25.1%
  • 14.2%
  • 57.8% (correct)
  • According to the provided information, what percentage of total calories should come from carbohydrates?

  • 10-35%
  • 50%
  • 45-65% (correct)
  • 20-35%
  • Based on the information provided, which of these is NOT a characteristic of the typical North American diet?

  • Too many calories are consumed
  • Too much protein and fat come from plant sources (correct)
  • Diet is too high in sodium
  • Too many carbohydrates come from simple sugars
  • What nutrient category is recommended to be increased in people following the North American diet?

    <p>Fiber (B)</p> Signup and view all the answers

    What is the recommended percentage of calories from fat in the Acceptable Macronutrient Distribution Ranges (AMDRs)?

    <p>20-35% (C)</p> Signup and view all the answers

    What is the primary source of carbohydrates in the typical North American diet according to the text?

    <p>Simple sugars (C)</p> Signup and view all the answers

    What is the recommended percentage of calories from protein in the Acceptable Macronutrient Distribution Ranges (AMDRs)?

    <p>10-35% (D)</p> Signup and view all the answers

    What percentage of calories comes from protein in the first example meal given in the text?

    <p>23.3% (B)</p> Signup and view all the answers

    Which of the following micronutrient deficiencies can lead to impaired cognitive development?

    <p>Iron Deficiency (A), Iodine Deficiency (B), Vitamin A Deficiency (C)</p> Signup and view all the answers

    Which of the following is NOT a consequence of iron deficiency?

    <p>Goiter (A)</p> Signup and view all the answers

    What is the primary source of energy for the human body?

    <p>Carbohydrates (A)</p> Signup and view all the answers

    Which of the following is a monosaccharide?

    <p>Fructose (C)</p> Signup and view all the answers

    What is the name of the storage form of glucose in plants?

    <p>Starch (C)</p> Signup and view all the answers

    Which of the following is considered an indigestible carbohydrate?

    <p>Fiber (D)</p> Signup and view all the answers

    What is the chemical formula for glucose?

    <p>C6H12O6 (D)</p> Signup and view all the answers

    A 150 lb person needs to consume how many mL of water per day, based on the given information?

    <p>4,500 mL (B)</p> Signup and view all the answers

    According to the provided information, how many calories are in 1 gram of carbohydrate?

    <p>4 kcal (D)</p> Signup and view all the answers

    According to the given information, how many ounces of carbohydrates does Sally consume per day?

    <p>8.75 ounces (D)</p> Signup and view all the answers

    How many ounces of water are consumed per day based on the recommendation mentioned in the text?

    <p>64 ounces (D)</p> Signup and view all the answers

    Which of the following is NOT mentioned as a component of the nutrient summary chart suggested in the content?

    <p>Glycemic Index (D)</p> Signup and view all the answers

    According to the provided content, what is the main message conveyed about supplements?

    <p>Supplements are not a substitute for a healthy diet. (A)</p> Signup and view all the answers

    What key concept is highlighted about consuming a variety of foods in one's diet?

    <p>It promotes a balanced diet. (D)</p> Signup and view all the answers

    Which of these factors is NOT mentioned in relation to a healthy diet?

    <p>Quantity (F)</p> Signup and view all the answers

    What is confirmation bias?

    <p>Favoring information that confirms your pre-existing beliefs. (D)</p> Signup and view all the answers

    Which cognitive bias involves relying heavily on the first piece of information encountered?

    <p>Anchoring Bias (A)</p> Signup and view all the answers

    How does the Dunning-Kruger Effect manifest in individuals?

    <p>It leads to people overestimating their skills or knowledge. (C)</p> Signup and view all the answers

    What does the term 'groupthink' refer to?

    <p>Conforming to a popular viewpoint to minimize conflict. (C)</p> Signup and view all the answers

    What is one consequence of the blind-spot bias?

    <p>Overconfidence in understanding one's knowledge. (C)</p> Signup and view all the answers

    What is the base rate fallacy?

    <p>Misjudging event likelihood without considering relevant base rate information. (C)</p> Signup and view all the answers

    Which of the following best describes the bandwagon effect?

    <p>Growing support for an idea as more people accept it. (B)</p> Signup and view all the answers

    Which quote is attributed to Bertrand Russell regarding knowledge and confidence?

    <p>'Fools and fanatics are often certain of themselves.' (B)</p> Signup and view all the answers

    What was the sample size of men followed in the Health Professionals Follow-up Study?

    <p>37,698 men (C)</p> Signup and view all the answers

    Which type of red meat showed a greater risk associated with mortality according to the studies mentioned?

    <p>Processed red meat (C)</p> Signup and view all the answers

    What was the period of follow-up for the Nurses' Health Study participants?

    <p>1980-2008 (B)</p> Signup and view all the answers

    What database was used to search for studies regarding red meat and health?

    <p>PubMed (C)</p> Signup and view all the answers

    How many deaths were documented during the follow-up period of the studies mentioned?

    <p>23,926 deaths (D)</p> Signup and view all the answers

    What is a key aspect of scientific research emphasized in the content?

    <p>It requires familiarity with scientific methodology. (C)</p> Signup and view all the answers

    What health conditions were participants free of at baseline in the studies mentioned?

    <p>Cardiovascular disease and cancer (A)</p> Signup and view all the answers

    What does the association between red meat intake and mortality suggest?

    <p>Higher intake of red meat increases mortality risk. (B)</p> Signup and view all the answers

    What health conditions are associated with the long-term consumption of red and processed meat?

    <p>Total mortality (A)</p> Signup and view all the answers

    Which meat type was found to have no significant association with ischemic heart disease (IHD) mortality?

    <p>White meat (A)</p> Signup and view all the answers

    What is the increased risk percentage of cardiovascular disease mortality associated with red meat consumption?

    <p>16% (B)</p> Signup and view all the answers

    How much processed meat intake increase per day is associated with all-cause and cardiovascular disease mortality?

    <p>50 g (D)</p> Signup and view all the answers

    Which factor was NOT included as a known confounding factor in the association of meat consumption studies?

    <p>Education level (D)</p> Signup and view all the answers

    What type of meat consumption contributes to the highest risk of mortality according to the studies reviewed?

    <p>Processed meat (B)</p> Signup and view all the answers

    What should be considered when interpreting the results of the meat consumption studies?

    <p>High heterogeneity (C)</p> Signup and view all the answers

    What is the associated risk of mortality for subjects in the highest category of processed meat consumption?

    <p>22% higher (B)</p> Signup and view all the answers

    Flashcards

    Fluid Needs Calculation

    Estimate fluid needs by multiplying weight in kg by 30 mL/kg.

    Weight Conversion to kg

    Find weight in kg by dividing pounds by 2.2.

    Carbohydrates in Diet

    In a 2000 calorie diet, 50% from CHOs equals 1000 kcal from CHOs.

    Grams of Carbs Calculation

    To find grams of CHOs, divide 1000 kcal by 4 kcal/g.

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    Carbs to Ounces Conversion

    Convert grams to ounces by multiplying grams by 0.035.

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    Water Consumption Recommendation

    General recommendation for water is 64 ounces per day.

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    Nutrient Classes

    There are 6 major classes of nutrients with distinct roles and properties.

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    Food First Approach

    Focus on a varied diet over supplements for nutrients.

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    Micronutrient Deficiencies

    Conditions resulting from a lack of essential vitamins and minerals.

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    Common Nutrient Deficiencies

    Iron, iodine, and vitamin A are the most prevalent deficiencies globally.

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    Fatigue from Deficiencies

    A common result of micronutrient deficiencies, leading to low energy levels.

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    Simple Carbohydrates

    Sugars that include monosaccharides and disaccharides.

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    Monosaccharides

    Single sugar molecules, the simplest form of carbohydrates.

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    Digestible Carbohydrates

    Carbohydrates that can be broken down by the body for energy.

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    Indigestible Carbohydrates

    Fibers that cannot be broken down, crucial for gut health.

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    Polysaccharides

    Long chains of monosaccharides, including starch and glycogen.

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    Carbohydrate calculation

    Calculating calories from carbohydrates: 30 g x 4 kcal/g = 120 kcal

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    Fat calculation

    Calculating calories from fat: 16 g x 9 kcal/g = 144 kcal

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    Protein calculation

    Calculating calories from protein: 20 g x 4 kcal/g = 80 kcal

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    Percent calories from CHO

    Percent of total calories from carbohydrates: 120 kcal/344 kcal = 34.8%

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    Percent calories from fat

    Percent of total calories from fat: 144 kcal/344 kcal = 41.9%

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    Percent calories from protein

    Percent of total calories from protein: 80 kcal/344 kcal = 23.3%

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    Macronutrient Distribution Ranges

    Acceptable ranges for macronutrient intake: CHOs 45-65%, Fats 20-35%, Proteins 10-35%.

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    North American diet issues

    High calorie intake, too much animal protein, too few fruits/vegetables, excess sodium.

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    Cognitive Bias

    A flaw in thinking leading to misinterpretation of information.

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    Confirmation Bias

    Favoring information that confirms existing beliefs, ignoring contradictions.

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    Anchoring Bias

    Relying heavily on the first piece of information learned.

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    Dunning-Kruger Effect

    Less knowledgeable individuals tend to overestimate their competence.

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    False Consensus

    Overestimating how many others share your beliefs or ideas.

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    Groupthink

    Conforming to a popular opinion to avoid conflict.

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    Bandwagon Effect

    Ideas or beliefs grow in popularity as more people adopt them.

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    Blind-spot Bias

    Failing to see one’s own cognitive biases.

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    Red Meat Consumption Risks

    Long-term intake of red meat is linked to increased risk of various health issues such as cardiovascular disease, diabetes, and colorectal cancer.

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    Processed Meat Effects

    High consumption of processed meat is associated with significantly higher mortality risks from all causes and cardiovascular diseases.

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    CVD Mortality Association

    Consuming 100g/d of red meat correlates with an increased risk of cardiovascular disease mortality.

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    All-Cause Mortality and Meat

    Processed meat intake increases the risk of mortality from any cause, while this association is weaker for red meat.

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    Epidemiological Studies

    Research studies that investigate the relationships between health outcomes and various exposures, like meat consumption.

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    Meta-analysis in Nutrition

    A method combining results from multiple studies to assess overall health effects, such as those related to meat consumption.

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    Confounding Factors

    Variables like age and BMI that can affect the outcomes of health studies, often controlled for in analysis.

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    Heterogeneity in Studies

    The variation in results across studies, which may limit the certainty of conclusions about meat consumption and health.

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    Research on Red Meat

    Studies have investigated the health impacts of red meat consumption.

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    Cohort Studies

    Long-term studies monitoring groups over time to assess outcomes related to behaviors like diet.

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    Mortality Risks and Red Meat

    Higher red meat intake linked to increased risks of death from various causes.

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    Unprocessed vs Processed Meat

    Increased risks of mortality are associated with both unprocessed and processed red meats.

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    Scientific Method Importance

    Using scientific methodology is essential for accurately interpreting health research.

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    Evaluating Research Studies

    It's important to consider the entire body of evidence, including conflicting studies.

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    Nutritional Expert Trust

    Trusting expert opinions informed by their extensive study and training is crucial.

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    Data and Mindset Change

    Adapting beliefs based on new scientific data is part of thoughtful scientific inquiry.

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    Study Notes

    Course Tips for Success

    • Attend in-person class sessions; instructors will cover material not in notes. Pay attention to repeated information.
    • Review online sections, including the news section and commentary in PowerPoint notes regularly.
    • Focus on concepts and terms marked with asterisks (*).
    • Practice applying learned concepts. Repetition is crucial.
    • Don't cram; space out study sessions.
    • Utilize textbook and office hours. Study with classmates.

    Exam Preparation

    • Review chapters before reviewing PowerPoint notes.
    • Review PowerPoint slides thoroughly.
    • Seek clarification on confusing topics from the instructor.
    • Complete the study guide(s) as you review PowerPoint notes.
    • Think actively about how the material applies to real life. Consider potential exam questions.
    • Review supporting materials (videos, websites, and diagrams) posted on the course platform (D2L).
    • Focus on bolded, underlined, asterisked, or repeated items in notes and study guides.

    Why Study Nutrition?

    • Two-thirds of U.S. deaths are linked to poor diet and/or inactivity.
    • Obesity is the second leading cause of preventable death (smoking is #1).
    • Nutrient intake (too much or too little) can lead to illness and death, even years later.
    • Childhood/teen/young adult dietary choices impact later health, particularly affecting calcium/vitamin D and bone health.
    • Peak bone mass occurs between ages 25-30; poor diet at younger ages can lead to osteoporosis.

    Chapter Outline

    • Nutrition overview
    • Energy sources and uses
    • The North American diet
    • Nutritional health status
    • Genetics and nutrition
    • Scientific research and needs assessment
    • Evaluating nutrition claims and products

    Introduction to Chapter 1

    • Diet is crucial for health and longevity.
    • Poor diet is strongly associated with malnutrition, chronic disease, and nutrient deficiencies.
    • Overweight/obesity, cardiovascular disease, type 2 diabetes, and some cancers are linked to diet.
    • Plant-based diets with adequate fruits, vegetables, and whole grains can be protective against disease.
    • Diseases of the heart
    • Cancer
    • Cerebrovascular Disease
    • Chronic obstructive lung disease
    • Accidents
    • Diabetes
    • Influenza and pneumonia
    • Alzheimer's disease
    • Kidney disease
    • Suicide
    • All other causes

    Nutrition Overview

    • Nutrition: The study of food, nutrients, and their effects on health and disease.
    • Nutrients: Substances essential for health; the body either cannot make them or makes them in insufficient quantities to maintain health. Essential nutrients must come from food.
    • Not all foods provide all nutrients.

    Nutrition Classes

    • Macronutrients: Needed in large amounts (grams). Carbohydrates, lipids, protein and water.
    • Micronutrients: Needed in small amounts (micrograms or milligrams). Vitamins and minerals.

    Nutrients in the Human Diet

    • Table includes numerous vitamins, minerals, and water.

    Micronutrient Deficiencies

    • Iron, iodine, and vitamin A are the most common worldwide.
    • Deficiencies can affect wound healing, cognitive development, eyesight, and lead to fatigue, infection, premature death and birth defects.

    Carbohydrates

    • Composed of carbon, hydrogen, and oxygen (1:2:1 ratio). Aka "hydrated carbons".
    • Primary energy source.
    • Provide 4 kcal/gram.
    • Divided into simple (sugars) and complex (starches). Simple can be monosaccharides (single) or disaccharides (double sugars). Complex carbs are polysaccharides (many monosaccharides joined together).
    • Include cellulose, glycogen, and starch.
    • Also include soluble and insoluble fiber.

    Lipids

    • Includes fats and oils (solid or liquid at room temperature).
    • Composed of carbon, hydrogen, and oxygen.
    • Provide 9 kcal/gram.
    • Insoluble in water.
    • Primary form is triglycerides (glycerol + 3 fatty acids).
    • Saturated fatty acids are primarily from animals and are solid at room temp.
    • Unsaturated fatty acids are primarily from plants and liquid at room temp.
    • Trans fats are created by processing unsaturated fatty acids.

    Proteins

    • Composed of Carbon, Hydrogen, Oxygen, and Nitrogen.
    • Provide 4 kcal/gram.
    • 20 different amino acids; essential amino acids must be obtained through diet.
    • Primary structural component in many body tissues.

    Vitamins

    • Enable chemical reactions in the body.
    • Do not provide energy, but aid in energy release.
    • 13 vitamins. Water-soluble and fat-soluble.

    Minerals

    • Simple, inorganic structures.
    • Play many roles in the body (e.g., body system function, water balance, nutrient absorption).
    • Divided into major minerals (needed in gram amounts daily) and trace minerals (needed in mg amounts daily).

    Water

    • Essential macronutrient for all body functions.
    • Important as a solvent, lubricant, transport medium, and temperature regulation medium.
    • The body needs a substantial amount of water.

    Energy Sources and Uses

    • Carbohydrates, lipids, proteins, and alcohol provide energy (calories)
    • These are used to fuel bodily functions, build and repair tissues, and maintain body temperature.

    Evaluating Nutrition Claims and Products

    • Exercise caution and skepticism when reviewing nutrition claims.
    • Supplements may be dangerous, so they are not evaluated as rigorously as drugs.
    • The FDA may not have adequate information to identify potentially harmful products.
    • Consult with healthcare providers for advice.

    Nutritional Status

    • Malnutrition: Nutrient intake either insufficient or excessive.
    • Under nutrition: Nutrient stores are depleted, but person exhibits no symptoms.
    • Clinical nutrition deficiency: Signs and symptoms of nutrient deficiency become apparent.
    • Desirable ("optimal") nutrition: Enough nutrients to support functions and maintain body stores.

    National Health Objectives

    • Set societal health goals and objectives.
    • Many targets directly related to nutrition (e.g., diet, nutrient intake, etc.).

    Assessing Nutritional Status

    • Anthropometric measurements (height, weight, etc)
    • Biochemical tests (blood, urine, feces, etc)
    • Medical history
    • Dietary assessments (diet patterns, eating habits, etc)
    • Environmental assessments (lifestyle, income, etc)

    Nutrition and Genetics

    • "Nutrigenomics": Focuses on the relationships between nutrition and gene expression.
    • Dietary choices can affect gene expression and may be passed down to later generations.
    • Family history plays a significant role in developing nutrition-related diseases (diabetes, cancer, osteoporosis, cardiovascular disease).

    Basic Science-Based Inquiry/Methods

    • Scientific method: A systematic approach to investigate natural phenomena.
    • Observation, questioning, hypothesis formulation, experiments, data collection, analysis, conclusions, peer review.
    • Control and experimental groups
    • Correlation vs. causation

    Additional Notes

    • Correlation does not equal causation.
    • Peer-reviewed studies are crucial for credibility.
    • Look at the entire body of research and not just individual studies.
    • Avoid letting personal biases sway your research conclusions. Look at all the evidence, and change your mind when warranted.

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    Description

    Test your knowledge on macronutrients and dietary recommendations based on the North American diet. This quiz covers carbohydrate, fat, and protein percentages, as well as the characteristics and deficiencies associated with the typical diet. Perfect for nutrition students or anyone interested in healthy eating.

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