the system of measuring calories was invented in 1770.
when was the system of measuring calories invented?
1770
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the usda's first nutrition guidelines were published in 1894 by dr. wilbur olin atwater as a farmers' bulletin. in atwater's 1904 publication titled "principles of nutrition and nutritive value of food," he advocated variety, proportionality and moderation; measuring calories; and an efficient, affordable diet that focused on nutrient-rich foods and less fat, sugar and starch. this information preceded the discovery of individual vitamins beginning in 1910.
history of usda nutrition guides