How Are Calories in Food Really Measured?

The Howtown crew explains how food manufacturers, the USDA, and food label services figure out how many calories are in the foods we eat. Spoiler: it’s not just a matter of burning food to see how much energy is produced — different nutrients are absorbed more or less efficiently by the body so you need to measure the output and compare it to the input.

And don’t forget to check the comments for Joss Fong’s banana oat blobs.

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• Joss Fong
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