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Questions and Answers
Which of the following is the definition of nutrients?
What is the unit used to measure food energy?
How is one calorie defined?
What determines the amount of energy a food provides?
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What are Dietary Reference Intakes (DRI)?
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True or false: Nutrients are chemical substances obtained from food and used in the body to provide energy, structural materials, and regulating agents to support growth, maintenance, and repair of the body's tissues?
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True or false: Calories are units by which energy is measured and food energy is measured in kilocalories (1000 calories equal 1 kilocalorie)?
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True or false: One calorie is the amount of heat necessary to raise the temperature of 1 kilogram (kg) of water 1°C?
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True or false: The amount of energy a food provides depends on how much carbohydrate, fat, and protein it contains?
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True or false: Dietary Reference Intakes (DRI) are a set of nutrient intake values for healthy people in the United States and Canada?
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Which of the following is the average daily intake of a nutrient that will meet the requirement of nearly all healthy people of a given age and gender?
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What is the highest amount of a nutrient that can be safely consumed with no risk of toxicity or adverse effects on health?
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What is the average daily intake of a nutrient that will meet the requirement of half of the healthy people of a given age and gender?
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What is the average daily amount of a nutrient that appears sufficient to maintain a specified criterion?
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What is any condition caused by excess or deficient food energy or nutrient intake or by an imbalance of nutrients?
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Adequate Intake (AI) is the average daily amount of a nutrient that appears sufficient to maintain a specified criterion.
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Recommended Dietary Allowance (RDA) is the average daily intake of a nutrient that will meet the requirement of nearly all healthy people of a given age and gender.
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Tolerable Upper Intake Level (TUIL) is the highest amount of a nutrient that can be safely consumed with no risk of toxicity or adverse effects on health.
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Estimated Average Requirement (EAR) is the average daily intake of a nutrient that will meet the requirement of half of the healthy people of a given age and gender.
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Malnutrition is a condition caused by excess or deficient food energy or nutrient intake or by an imbalance of nutrients.
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Study Notes
Nutrients and Their Definition
- Nutrients are chemical substances derived from food that the body uses for energy, structural materials, and regulatory functions to support growth, maintenance, and repair of tissues.
Measurement of Food Energy
- Food energy is measured in calories, with kilocalories being the unit commonly used (1 kilocalorie equals 1000 calories).
Definition of a Calorie
- One calorie is defined as the amount of heat required to raise the temperature of 1 kilogram of water by 1°C.
Factors Affecting Food Energy
- The energy provided by food is determined by its composition of carbohydrates, fats, and proteins.
Dietary Reference Intakes (DRI)
- Dietary Reference Intakes (DRI) constitute a set of nutrient intake values designed for healthy individuals in the United States and Canada.
True or False Statements
- True: Nutrients are substances obtained from food that provide essential functions in the body.
- True: Food energy is measured in calories and often referred to in kilocalories.
- True: One calorie represents the energy needed to increase the temperature of one kilogram of water by one degree Celsius.
- True: The energy provided by food is influenced by its macronutrient composition (carbohydrates, fats, proteins).
- True: DRI provides guidance on nutrient intake values for healthy populations.
Nutrient Intake Concepts
- Recommended Dietary Allowance (RDA): Average daily intake sufficient to meet the needs of nearly all healthy individuals in a specific demographic.
- Tolerable Upper Intake Level (TUIL): Maximum daily intake of a nutrient that poses no risk of adverse effects or toxicity.
- Estimated Average Requirement (EAR): Average daily intake necessary to meet the needs of half the healthy population for a specific demographic.
- Adequate Intake (AI): Average daily amount of a nutrient that appears adequate to maintain a specified health criterion.
Malnutrition
- Malnutrition refers to conditions resulting from excess or insufficient intake of food energy or nutrients, or imbalances in nutrient intake.
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Description
Test your knowledge about nutrients and calories with this quiz! Learn about the chemical substances obtained from food that provide energy, structural materials, and regulating agents for the body. Discover how calories are measured and the relationship between calories and heat. Challenge yourself and expand your understanding of nutrition!
