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Questions and Answers
What is the definition of nutrient density?
What is the definition of nutrient density?
What is the recommended daily intake of carbohydrates according to the Acceptable Macronutrient Distribution Ranges (AMDR)?
What is the recommended daily intake of carbohydrates according to the Acceptable Macronutrient Distribution Ranges (AMDR)?
What is the purpose of the Digestive System?
What is the purpose of the Digestive System?
What is the definition of a refined food?
What is the definition of a refined food?
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What is the name of the study that compares affected and unaffected groups?
What is the name of the study that compares affected and unaffected groups?
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What is the unit of energy used to measure the energy content of foods?
What is the unit of energy used to measure the energy content of foods?
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How do you calculate the total calories from macronutrients?
How do you calculate the total calories from macronutrients?
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What is the percentage of calories from fat if a food has 10g of fat and total calories of 200?
What is the percentage of calories from fat if a food has 10g of fat and total calories of 200?
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What is the purpose of the % Daily Value (%DV) on a nutrition label?
What is the purpose of the % Daily Value (%DV) on a nutrition label?
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What is the difference between macronutrients and micronutrients?
What is the difference between macronutrients and micronutrients?
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Study Notes
Nutrition Calculations and Nutrient Label Interpretation
- To determine total fat content, multiply total fat (grams) by 9 to get total fat calories.
- To find percentage of calories from fat, divide total fat calories by total calories and multiply by 100.
- Carbohydrates provide 4 calories/gram, proteins provide 4 calories/gram, and fats provide 9 calories/gram.
- To find total calories from macronutrients, multiply grams of each macronutrient by their respective calorie values.
Macronutrient Calculations
- To find percentage of calories from a macronutrient, divide calories from that macronutrient by total calories and multiply by 100.
Serving Size and Servings per Product
- Check the label for serving size and multiply by the number of servings to find total consumption.
Daily Value (%DV)
- Based on a 2000-calorie diet, %DV is calculated by dividing the amount in a serving by the daily value and multiplying by 100.
Nutrients and Nutritional Guidelines
- There are 6 classes of nutrients: carbohydrates, proteins, fats, vitamins, minerals, and water.
- Carbohydrates, proteins, and fats are energy-yielding nutrients, while vitamins, minerals, and water are non-energy-yielding nutrients.
- Nutrient density refers to high nutrient content relative to calorie content.
Dietary Principles
- Adequacy: Ensure sufficient essential nutrients.
- Nutrient density: Prioritize high nutrients per calorie.
- Variety: Consume different foods for different nutrients.
- Moderation: Avoid excessive intake.
- Calorie control: Maintain energy balance.
- Balance: Ensure proper proportions of nutrients.
Dietary Reference Intakes (DRI)
- DRI components include RDA, AI, UL, and EAR.
- AMDR (Acceptable Macronutrient Distribution Ranges) are:
- Carbohydrates: 45-65%
- Fats: 20-35%
- Proteins: 10-35%
Food Labels
- Required information on labels includes serving size, calories, macronutrients, and %DV for nutrients.
- Daily values are based on a 2000-calorie diet.
Key Definitions
- Refined refers to processed foods with coarse parts removed.
- Epidemiological study: Study of health patterns in populations.
- Longitudinal study: Study over a long period.
- Case-control study: Comparison between affected and unaffected groups.
- Randomized clinical trial: Participants randomly assigned to groups.
- Quackery: False claims based on unscientific evidence.
Digestion and Digestive Disorders
- Digestive system functions include breakdown of food and absorption of nutrients.
- GI tract anatomy includes mouth, esophagus, stomach, small intestine, and large intestine.
- Common digestive disorders include GERD, IBS, IBD, celiac disease, gallstones, constipation, and diarrhea.
- Digestive enzymes include lipases, proteases, and carbohydrases.
- Fiber types include soluble (delays transit, lowers cholesterol) and insoluble (speeds transit).
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Description
This quiz covers nutrition calculations, including determining total fat content and percentage of macronutrients, and interpreting nutrient labels. Useful for nutrition final exams.
