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 Image Number D2967-2

Caption for March 2018 AgResearch magazine article, "Going Nuts Over Calories." In the early 20th century, ARS chemist Wilbur O. Atwater determined a standard way to measure calories in food.

Caption for September 2013 AgResearch magazine article, "An Improved Method To Estimate Calories." Close-up of ARS chemist Wilbur O. Atwater.

 

Photo by USDA.

 

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