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The Nutrition Laboratory, Home Economics Research Department, Iowa Agricultural Experiment Station, Ames, and The Bureau of Human Nutrition and Home Economics, U.S. Department of Agriculture, Washington, D.C.
Metabolism studies have been conducted on 4 young women to determine the degree to which green peas, ice cream, almonds, and soybeans are digested by this age group. Studies of these foods were initiated on the basis of earlier observations showing that a larger proportion of riboflavin furnished from ice cream was available for use than was available from two types of legumes or almonds.
The data revealed excellent digestion of ice cream and less satisfactory digestion of the other test foods. Losses of nutrients from certain foods were surprisingly large and apparently were due to incomplete digestion.
The incomplete digestion of certain foods is believed to influence not only the availability of protein, fat, and calories but also the availability of the vitamins present.
2 Present address: Georgia Experiment Station, Experiment, Georgia.
3 Present address: Sacramento State College, Sacramento, California.
Manuscript received 27 August 1951.