Food calories research

Food calories research

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Credit: STEPHEN AUSMUS/US DEPARTMENT OF AGRICULTURE/SCIENCE PHOTO LIBRARY

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Caption: Food calories research. Physiologist inserting a dietary food sample into a bomb calorimeter for analysis. In the background, a biologist prepares the next diet sample pellets for testing. The energy required to completely burn the food sample in the calorimeter will indicate the energy (calorie) content of the food. This research is being carried out by the Agricultural Research Service of the US Department of Agriculture.

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