Podcast
Questions and Answers
What is a common reason for missing values of certain nutrients?
What is a common reason for missing values of certain nutrients?
- The food is not commonly consumed
- Lack of research on the nutrient
- Inaccurate data concerning the complete nutrient analysis of the food (correct)
- The nutrient is not essential for the body
What is the main purpose of government-sponsored websites like those sponsored by the USDA?
What is the main purpose of government-sponsored websites like those sponsored by the USDA?
- To sell dietary supplements
- To provide recipes for healthy eating
- To promote specific food products
- To help assess the energy and nutrient contents of food intake (correct)
What is the name of the USDA-sponsored website that provides extensive information regarding the energy and nutrient content of food?
What is the name of the USDA-sponsored website that provides extensive information regarding the energy and nutrient content of food?
- FoodData Central (correct)
- NutrientInfo.com
- HealthyEating.org
- USDA.gov
Why are USDA-sponsored websites updated regularly?
Why are USDA-sponsored websites updated regularly?
What is the purpose of the Personal Dietary Analysis feature at the end of this chapter?
What is the purpose of the Personal Dietary Analysis feature at the end of this chapter?
What is the name of the search tool that helps you assess the energy and nutrient contents of your food intake?
What is the name of the search tool that helps you assess the energy and nutrient contents of your food intake?
What is the primary reason why different dietary analysis software programs may provide different values for energy and nutrient contents for the same food item?
What is the primary reason why different dietary analysis software programs may provide different values for energy and nutrient contents for the same food item?
What is the purpose of analyzing several samples of a particular food in determining its nutrient contents?
What is the purpose of analyzing several samples of a particular food in determining its nutrient contents?
What can be used to estimate the nutritional value of various foods?
What can be used to estimate the nutritional value of various foods?
Why do people with Internet access have an easier time determining the energy and nutrient contents of their food choices?
Why do people with Internet access have an easier time determining the energy and nutrient contents of their food choices?
What is a factor that can affect the nutrient content of a plant food?
What is a factor that can affect the nutrient content of a plant food?
What is the purpose of food composition tables?
What is the purpose of food composition tables?
How do scientists determine the nutrient contents of a particular food?
How do scientists determine the nutrient contents of a particular food?
Why may the values provided by dietary analysis software programs and websites not be exact amounts?
Why may the values provided by dietary analysis software programs and websites not be exact amounts?
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Study Notes
Dietary Analysis Software
- Different dietary analysis software programs may provide different values for energy and nutrient contents for the same food item due to various factors such as hereditary factors, age, growing conditions, and production methods.
- Dietary analysis software and websites can be quick and easy tools for determining nutrient and energy contents of a specific food.
Factors Affecting Nutrient Content
- Nutrient content of plant foods can vary depending on hereditary factors, age, growing conditions, and production methods.
- Scientists typically analyze several samples of a particular food to determine their nutrient contents and then average the results.
Government-Sponsored Dietary Analysis Websites
- The USDA sponsors websites such as "What's in the Food You Eat Search Tool" (www.usda.gov) and FoodData Central (https://fdc.nal.usda.gov/) to help assess the energy and nutrient contents of food intake.
- These websites provide extensive information regarding the energy and nutrient content of food and are updated regularly to provide nutritional information about new products.
Using Dietary Analysis Software
- Dietary analysis software can be used to estimate the nutritional value of various foods.
- For example, an ounce of Swiss cheese contains a certain amount of selenium, magnesium, and niacin.
Reliability of Sources
- At least two reliable sources of information about the energy and nutrient contents of foods and beverages include the USDA's websites and food composition tables.
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