Podcast
Questions and Answers
What is the primary purpose of the government-sponsored websites discussed in this section?
What is the primary purpose of the government-sponsored websites discussed in this section?
To help individuals assess the energy and nutrient contents of their food intake
Why may different dietary analysis software programs provide different values for energy and nutrient contents for the same food item?
Why may different dietary analysis software programs provide different values for energy and nutrient contents for the same food item?
Different dietary analysis software programs may provide different values for energy and nutrient contents for the same food item because the same type of plant food may vary in nutrient content depending on hereditary factors, age, growing conditions, and production methods.
What is the name of the website that provides an extensive database of energy and nutrient content of food?
What is the name of the website that provides an extensive database of energy and nutrient content of food?
FoodData Central
How do scientists determine the nutrient contents of a particular food?
How do scientists determine the nutrient contents of a particular food?
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What is the purpose of the 'What's in the Food You Eat Search Tool'?
What is the purpose of the 'What's in the Food You Eat Search Tool'?
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Why are the USDA-sponsored websites updated regularly?
Why are the USDA-sponsored websites updated regularly?
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What happens when accurate data concerning the complete nutrient analysis of a food are unavailable?
What happens when accurate data concerning the complete nutrient analysis of a food are unavailable?
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What opportunity is provided at the end of this chapter for practicing dietary analysis?
What opportunity is provided at the end of this chapter for practicing dietary analysis?
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How can people with Internet access obtain information about nutrients in a food that are not listed on the Nutrition Facts panel?
How can people with Internet access obtain information about nutrients in a food that are not listed on the Nutrition Facts panel?
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What is the purpose of food composition tables in the past?
What is the purpose of food composition tables in the past?
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Why do researchers average the results of several samples of a particular food to determine their nutrient contents?
Why do researchers average the results of several samples of a particular food to determine their nutrient contents?
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What is an example of a factor that can affect the nutrient content of a plant food?
What is an example of a factor that can affect the nutrient content of a plant food?
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What can you do to estimate the nutritional value of various foods using the U.S. Department of Agriculture's websites?
What can you do to estimate the nutritional value of various foods using the U.S. Department of Agriculture's websites?
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Study Notes
Dietary Analysis Software
- Different dietary analysis software programs can provide varying values for energy and nutrient contents for the same food item due to factors such as hereditary factors, age, growing conditions, and production methods.
- Scientists analyze multiple samples of a particular food to determine their nutrient contents and then average the results to obtain a representative value.
Government-Sponsored Dietary Analysis Websites
- The USDA sponsors websites that provide tools for evaluating food intakes and physical activity habits.
- The "What's in the Food You Eat Search Tool" at www.usda.gov allows users to assess the energy and nutrient contents of their food intake.
- FoodData Central (https://fdc.nal.usda.gov/) is a USDA-sponsored site that provides extensive information on the energy and nutrient content of food.
- USDA-sponsored websites are regularly updated to provide nutritional information about new products.
Estimating Nutritional Value of Foods
- The USDA's websites can be used to estimate the nutritional value of various foods.
- For example, an ounce of Swiss cheese contains:
- Selenium: unknown amount (not specified in the text)
- Magnesium: unknown amount (not specified in the text)
- Niacin: unknown amount (not specified in the text)
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Description
Learn about dietary analysis software and how to estimate nutritional values of foods using the U.S. Department of Agriculture's websites. Discover how to find information on nutrients not listed on the Nutrition Facts panel.
