How can I measure my own food's nutritional content?

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Discussion Overview

The discussion focuses on how individuals can measure the nutritional content of foods without labels, particularly for homemade or unprocessed items. Participants explore the feasibility of this as a hobby and the tools or resources available for such measurements.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant inquires about the tools needed to measure specific nutrients like protein, fats, or magnesium in unlabeled foods.
  • Another participant mentions that nutritional labeling on processed foods is based on averages from the USDA NAL Nutrient database, which is used by food processors to avoid high costs of direct analysis.
  • It is suggested that individuals can use the NAL database to track their food intake and estimate nutrient content over time.
  • A participant points out the importance of tracking dietary fiber intake, noting that typical diets may lack sufficient fiber.
  • Links to the USDA database and related resources are shared for further exploration of nutrient data.
  • One participant expresses difficulty accessing and using the database files, indicating they are not easily readable or printable.

Areas of Agreement / Disagreement

Participants generally agree on the utility of the USDA NAL Nutrient database for estimating nutritional content, but there are differing experiences regarding the accessibility and usability of the database files.

Contextual Notes

Some participants note limitations in the readability of the database files and the potential challenges in accurately measuring nutrients without professional tools.

Who May Find This Useful

Individuals interested in nutrition, home cooking, or those looking to track their dietary intake may find this discussion relevant.

Confused
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What kind of tools would I need to measure a specific nutrient from foods I buy with no labels on them, or foods I bake? I.e. I want to test the protein quality, kind of fats, or magnesium in the food per 10g serving.

Is it even possible for a normal person to do this as little hobby?
 
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A lot of the nutritional labelling you see on processed and canned foods is based on the data from the USDA NAL Nutrient database. Those labels represent a kind of average analysis based on the recipe for the product. It is done this way because large food processors - other than doing microbial analyses - are avoiding the large costs of directly analyzing proteins, for example.

Before I yammer on too much it would be easier if you peeked here:
http://www.nal.usda.gov/fnic/foodcomp/search/


Companies involved in food labelling often use database/spreadsheet applications that use data downloaded from this site
 
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Agreed. I also use the NAL database. If you look up everything you eat and write down the numbers in a journal, within a week you'll have a good enough feel that you will accurately estimate those few foods that are unlabeled.

In addition to the items you mentioned, you might track your dietary fiber intake. Typical American diets are woefully short in fiber.
 
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Hey, when I click on the link I get a browser that piles up text. I tried saving file but it's only a .txt file. Tried opening it with adobe reader but it doesn't work. I was wanting to print some :mad:

Thanks for the links, I never knew about them.
 
Most of the files on that page are not human readable.

Look for the link in the middle of the page that says "nutrient lists"
 

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