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Article
June 13, 1925

BERLIN

JAMA. 1925;84(24):1853-1854. doi:10.1001/jama.1925.02660500061030

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Abstract

The Probable Adequacy of the World's Future Food Supply  The address by Professor Penck, which I reported in a previous letter, has induced Professor Rubner to publish an interesting article in the Deutsche medizinische Wochenschrift on the problem whether the world's future food supply is limited. The food consumption of a nation may be computed by taking the statistics of the number of persons engaged in various occupations and applying the known calory requirements for the several callings. Or, we can use household accounts as a basis of computation. However, no record is kept of the kitchen waste. Finally, we can consider the total production of foodstuffs, the total imports and exports, and the amount of foodstuffs used for animal feeding and industrial purposes, and make a certain allowance for losses occurring in the course of trade, and thus ascertain the consumption per person of proteins, fats, carbohydrates and calories.

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